EP1885459A1 - Self-adhesive skin patch and combination set for cosmetic skin care - Google Patents

Abstract

The invention relates to a skin patch comprising a matrix that adheres to the skin and contains at least one cosmetic substance and a combination with a skin wrap for creating effective compression used for the treatment of cellulite and/or striae.

Description

 Beiersdorf Aktiengesellschaft Hamburg

description

Self-adhesive skin layer and combination set for cosmetic skin care

The present invention relates to a skin support comprising a matrix adherent to the skin comprising at least one cosmetic active ingredient and a combination with a skin wrap for producing an effective compression for the treatment of cellulite and / or stretch marks of the skin, such as stretch marks.

Cellulite (medical term: dermopanniculosis) is not a disease but a cosmetic problem.

The causes of cellulite are mainly due to the specific structure of the female skin and the response to the female hormones. Fat cells are stored in the subcutaneous tissue. Their amount is already determined in the infant stage and can not be influenced by diet or exercise. In the fat cells, the fatty acids from the diet are converted into fats and embedded into the connective tissue like nodules. If these fats are not broken down for a long time (for example, sports), and the body is additionally over-fed, the cells can expand many times their size. The enlarged cells then push through the connective tissue and it comes to the dreaded orange peel, also known as cellulite. The other consequences in old age are spider veins, varicose veins, thrombosis and leg ailments. Often the thighs are also storage for excess fat that is absorbed through the diet. The ugly, lateral thickening of the thighs, also called rider's trousers, combined with cellulitis often represent a great burden for those affected.

Known for the treatment of cellulite, for example, the so-called. Body-wrap principle. The problem areas are creamed with a special body wrap gel and then wrapped with a wrapping foil. This creates a heat effect and it takes place through the active ingredients of the body wrap gel and the heat development a purification of the tissue.

By applying the gel and the wrap pants, the lymph circulation is stimulated and toxins, fats and slag substances are eliminated from the body through the development of heat. Thus, stretch marks are reduced, cellulite reduced and the so-called riding pants reduce after a few treatments.

Also known are anti-cellulite patches (for example, "Perfect SNm Cellulite Patch" by L'Oreal), whose ingredients such as sea algae or caffeine promote the smoothing of unsightly dents. Especially the beauty patches make it easier for women who are tired to permanently cream, the application. This allows targeted treatment of severely affected areas. The advantage of such a patch lies in the more than eight hours of continuous drug delivery of the patch. In addition, they can also be used at night

The CREALITE product from Creaderm uses nanotechnology for cellulite for the first time. With liposomes, caffeine gets into the skin through the skin

Transported subcutaneous fatty tissue.

CREALITE contains high-dose caffeine (2%) in a specially adapted carrier.

Caffeine deprives the cells of water and also inhibits the enzyme, cyclic M3 ', 5'-

Nucleotide phosphodiesterase, which should lead to a weight reduction. The cellulite greatly enlarged fat cells are thereby reduced in size and the

Skin should be firmer and smoother again.

WO 05/007127, WO 04/093865, WO 04/074216 and WO 04/060268 also show numerous cosmetic active ingredients and treatment methods for the treatment of cellulite.

In EP 1181926, EP 728472 and EP 493151, in particular caffeine-containing cosmetics are disclosed for cellulite treatment. Object of the present invention is to show alternatives for the treatment of cellulite.

Annoying cosmetic phenomenon are stripes in the skin after pregnancy, which have a disturbing effect on the aesthetic appearance. So-called stretch marks are also called stria or stretch marks. It is not a disease but a purely cosmetic problem.

Skin stretch marks (stria) are cracks in the subcutaneous tissue. They develop on the stomach, hips or chest. Striae are first bluish-red, later yellowish-white. They have a similar appearance to scars. They arise when the skin is overstretched and at the same time the skin's elasticity has decreased. A high cortisol level promotes the formation of stretch marks. This hormone causes the skin to hold more water and it reduces the elasticity of the skin.

If the skin is stretched due to pregnancy or weight gain, small cracks develop in the elastic tissue. The skin becomes thinner at the affected areas and the blood vessels shimmer bluish. Later the spots were scarred and the stripes turned white. Unfortunately, they no longer disappear.

Pregnant women, adolescents, competitive athletes, those on hormonal treatment, and those with high body weights are the main striatal groups.

In pregnancy, there is an elevated level of cortisol in the blood. Here, many women develop stretch marks in the abdominal skin. They are called "striae gravidarum" or stretch marks.

If stretch marks are present, they can no longer be completely reduced according to current knowledge. A reduction and alleviation is possible up to 50%. Also for laser treatments is that they usually do not bring the desired success. It is therefore also an object of the present invention to provide a skin pad which makes it possible to treat the stria-affected skin areas and to effect a cosmetic improvement of these skin areas.

The skin is exposed to ever-changing environmental conditions and is subject to a number of changes over time. Thus, changes in barrier properties, skin-elasticity and elasticity, pigmentation and, in particular, as a result of exogenous influences, also lead to different inflammatory reactions and, for example, to subsequent reactions of the skin to the action of UV radiation.

The barrier effect of the skin can be quantified by determining transepidermal water loss (TEWL). It is the evaporation of water from the inside of the body without the inclusion of water loss during sweating. The determination of the TEWL value has proven to be extraordinarily informative and can be used for the diagnosis of chapped or chapped skin, for the determination of the compatibility of chemically different surfactants and the like.

For the beauty and care of the skin, the water content in the uppermost layer of skin is of utmost importance. It can be favorably influenced to a limited extent by introducing moisture regulators.

Cosmetic skin care is to be understood in the first place that the natural function of the skin as a barrier against environmental influences, e.g. Dirt, chemicals, micro-organisms, and against the loss of endogenous substances, e.g. Water, natural fats, electrolytes, fortified or restored.

If this function is disturbed, it may lead to increased absorption of toxic or allergenic substances or infestation of microorganisms and as a result to toxic or allergic skin reactions.

The aim of skin care is also to compensate for the daily loss of fat and water loss of the skin. This is especially important when the natural regeneration capacity is insufficient. In addition, skin care products are intended Protect the environment, especially against sun and wind, and delay the aging of the skin.

Chronic skin aging is e.g. caused by endogenous, genetically determined factors. In epidermis and dermis, age-related e. on the following structural damage and dysfunctions, which may also fall under the term "senile xerosis":

a) dryness, roughness and development of dryness wrinkles; b) itching; and c) decreased relubrication by sebaceous glands, e.g. after washing.

Exogenous factors such as UV light and chemical noxae can be cumulatively effective. In epidermis and dermis, exogenous factors occur, e.g. The following structural damage and functional disorders in the skin:

d) increased susceptibility to mechanical stress, e.g. Cracking.

Products for the care of sensitive, itchy and or dry skin or products for the treatment or prophylaxis of DNA damage are known per se. However, their effectiveness is limited.

It is therefore an object of the present invention to provide, in particular, cosmetic skin coatings which, with additional, effective protection against harmful oxidation processes in the skin, but also provide additional protection or help against dryness, roughness and formation of dryness wrinkles, itching, reduced refatting through sebaceous glands, eg after washing and increased susceptibility to mechanical stress, e.g. Cracking.

The prior art knows preparations which - applied to the skin or mucous membranes - moistening and cooling effect. In the literature, for example, ionic compounds, in particular ammonium salts, are described as cooling agents. As cooling preparations are also widespread isopropanolic gels with camphor and menthol additive applied and in general often essential oils, especially camphor and menthol, but also their derivatives, eg. As menthyl lactate or menthyl-3-hydroxybutyrate, be incorporated into cooling compositions.

Menthol, camphor and their derivatives, but also other essential oils lower the threshold of stimulation of the neuronal cold receptors and cause a feeling of cold. Frequently, however, they simultaneously increase blood circulation, which on the contrary causes a feeling of warmth. The use of these substances, especially on irritated skin, is in any case problematic. In addition, many of these compounds are poorly water-soluble. Their use is therefore limited to a few cosmetics and dermatics.

It is therefore an object of the present invention to provide a skin support which does not dampen, cool and / or increase the circulation of the listed disadvantages.

In the case of the active substance-containing plaster systems, which remain on the skin over a relatively long period of time, the main focus is naturally on the skin compatibility of the adhesive matrices. It is expected to provide skin-friendly, good adhesion, especially over a longer period of use, and a painless, residue-free removal of the patch or pad. Of many known adhesives, such as rubber, silicones, resins or styrene hydrocarbons, which are used in particular to improve the adhesive properties, this expectation is not met. These known adhesive substances often lead to the appearance of skin irritations, allergies, maceration and / or a painful detachment of the patch from the skin.

The mechanism of action of patches or cosmetic matrices for the administration of cosmetic substances into and on the skin is subject to an analogous functional principle such as Transdermal Therapeutic Systems (TTS). The terms plaster, cosmetic / dermatological matrices and cosmetic / dermatological pads are used interchangeably below. Transdermal therapeutic systems for delivery of active ingredients into and through the skin have been known for a long time and represent paving, in particular drug-doped systems.

The topical application of cosmetic and dermatological active ingredients via plaster systems or cosmetic matrices offers two main advantages:

• Firstly, this dosage form realizes a release kinetics of the first-order drug, whereby a constant level of active ingredient in the skin can be maintained over a very long period of time.

• Secondly, suitable systems can be used to provide additional intensive skin care.

The time-dependent release of the cosmetic active substance from a TTS takes place as a function of its distribution coefficient TTS / skin and its diffusion in the area of the TTS

TTS and the skin.

Both factors are determined by the composition of the matrix, which can directly affect the amount released per unit time and the duration of the efficacy. Usually this hydrocolloids, solubilizers and enhancers are used, which allow improved solubility and diffusion and a faster transition of the substance of TTS in the skin.

Ideally, first-order release kinetics are achieved, allowing for equal amounts of release per unit of time.

An embodiment of such transdermal systems well described in the literature represents matrix systems or monolithic systems in which the cosmetic active ingredient is incorporated directly into the pressure-sensitive adhesive. Such an adhesive-containing, active substance-containing matrix is usually provided in the ready-to-use product on one side with a carrier which is impermeable to the active substance, on the opposite side there is a carrier film provided with a separating layer which is removed on the skin before application (sticking & sealing, no .42, 1998, pp. 26 to 30). The above-mentioned properties of a TTS avoid frequently repeated application and loading of the skin with high concentrations of active ingredients and thus reduce the irritation of the skin, which is unavoidable with repeated application of liquid and semi-solid administration forms.

In summary, the benefits of TTS are significantly improved user compliance, due to the ease and speed of application and long-term efficacy of transdermal therapeutic systems.

A basic requirement for a TTS is, on the one hand, a good adherence to the skin, which must be maintained over the entire period of the intended drug dosing, and, on the other hand, a residue-free removability of the TTS. Also, a painful redetachment of the active ingredient-containing patch after prolonged gestation is often observed. In addition to adhesives which are coated in solution on the support, u.a. also solvent-free systems, such as hot melt adhesives used. These are characterized by the fact that in the coating can be dispensed with the use of organic solvents and dispersants. Hot melt adhesives are converted by heating in a liquid form and applied as a melt on the respective plaster backing. In addition to technical aspects, such as solvent treatment, designs of systems with explosion protection and environmental protection requirements, also medical reasons for the choice of solvent-free adhesives play a role. Transdermal therapeutic systems are usually applied to healthy, intact skin.

Self-adhesive matrix systems for the delivery of cosmetic agents are traditional applications in Asia, particularly in Japan, and are defined in the Japanese Pharmacopoeia under the term "cataplasm." Cataplasms are then usually blended with glycerine, water or other suitable liquid substances with finely powdered Active ingredients prepared with the addition of essential oils.

Glycerol acts as a humectant to prevent premature dehydration when using the cataplasms. While natural thickening agents such as alumina etc. are used in the traditional Asian preparations, more and more modern synthetic raw materials, such as eg polyacrylic acid as gelling agent, are used for the production in recent decades. As a result, the generally pasty cataplasms can also be represented as hydrogel matrices with improved appearance and user-friendliness. EP 1 136 057 describes an aqueous gel system for cosmetic use without a carrier or cover with a light transmission of min. 70%. EP 0 507 160 describes cataplasms containing lidocaine.

A disadvantage of the cataplasms described is that many different individual components such as gelling agents, thickeners, plasticizers, humectants, stabilizers, emulsifiers, pH regulators, antioxidants, etc. are required for the preparation of the base matrices, and in case of active substance-containing cataplasms possibly additionally solubilizers and penetration accelerators. Since the adhesive behavior and consistency of such a matrix result from the interaction of all individual components, targeted product development / optimization with respect to these basic product requirements is correspondingly time-consuming and difficult.

The preparation of polymer matrices, especially gel matrices, polyacrylates has also been known for many years and is z. In EP 0 507 160, JP 11-228340 and JP 04178323. Gel matrices are used, inter alia, as adhesive base and drug reservoir in transdermal systems. Such systems have sufficient adhesive power, especially on moist skin (buccal patches), but can not be completely removed if necessary due to insufficient cohesiveness. Polyacrylic acid must be crosslinked to form a gel with a defined structure. The nature of the crosslinker contributes significantly to the structure of the resulting gel. The usual crosslinking agents may be metal ions (eg: Al ³⁺ ions), or organic compounds. Crosslinking with aluminum salts proceeds via the coordination of the oxygen functions of the polyacrylic acid to the Al ³⁺ ions. It forms a very dense gel with high viscosity, wherein the viscosity of the gel can be controlled only by the amount of crosslinker (Handbook of pressure sensitive adhesive technology, page 458 ff, 1999). JP 11-228340 discloses polyacrylic acid-based gels which use Al ^{+ 3} compounds as crosslinkers. The use of the absolutely necessary aluminum compound as a crosslinking agent is limited, since otherwise the physical properties of the gel are impaired. If the proportion of aluminum crosslinker is too high, the gel becomes too hard.

From the literature further examples of crosslinking with multivalent metal ions are known, e.g. US 3900610 (zinc salts), US 3770780 or US 3790533 (titanium compounds). The ionic crosslinking with metal ions leads to hard, viscous and slightly sticky polymer gels (Handbook of Pressure Sensitive Adhesive Technology, page 458 ff, 1999).

EP 303445 discloses a monolayer gel matrix plaster based on water-soluble polymers. Mandatory ingredients include clebopride or a pharmaceutically acceptable salt thereof as the active ingredient, water, water-absorbing agents, and water-soluble polymers. As water-soluble polymers, one skilled in the art can select from a number of known polymers such as polyvinyl alcohol, gelatin, polyacrylic acid, sodium polyacrylates, methylcellulose, carboxymethylcellulose, polyvinylpyrrolidone, gum and other crosslinkable polymers, and mixtures thereof

EP 976382 describes a plaster containing a matrix consisting of a hydrophilic gelling in an aqueous phase system, formed from gelan gum and at least one other hydrocolloid. Claimed is Gelangummi mandatory. Gelan gum, as defined by specialist lexicons, is understood to mean hydrocolloids obtained from the following marine plants: Agardhiella tenera, Furcellaria fastigiata, Hypnea cervicornis, musciformis, spicifera, Suhria vitata. Likewise, the essential aspects of the self-adhesive properties, the adjustability of bond strength and elasticity of the resulting matrices are not mentioned.

A further problem in the crosslinking of polyacrylic acid to a self-adhesive matrix or gel is that a matrix once produced with defined physical properties, viscosity, tack etc. must have the same defined properties in a later production process. This reproducibility is with consuming or not to realize the currently known networking technologies.

It is also known that the adhesive of the patch can be used as the drug-containing matrix. In addition to self-adhesive compositions applied from solution, hot-melt self-adhesive compositions have also been proposed for this purpose, for example in EP 0 663 431 A, EP 0 452 034 A, EP 0 305 757 A, DE-OS 43 10 012, DE-OS 42 22 334 and DE-OS. C 42 24 325. As active ingredients are here, when they are named, systemically acting listed.

Exemplary of active ingredient-containing patches are the circulation-promoting active ingredient patches called, which belong to the group of locally effective therapeutic systems. The use of such patches is indicated for the treatment of rheumatic complaints, sciatica, lumbago, neck stiffness, shoulder-arm pain and muscle tension and strains, muscle soreness or muscle, joint and nerve pain in the musculoskeletal system.

Capsaicin and nonivamide are known active ingredients of such local, blood circulation-promoting patch. Due to their application to the musculoskeletal system they usually have to stick strongly. Usually, the patches are coated over their entire surface with a resin-rubber adhesive containing the active ingredient. However, such plasters, which generally have to be applied over a larger area, can occasionally cause mechanical skin irritations after detachment in the case of sensitive patients. Their removal is painful to some extent after prolonged gestation.

Another disadvantage of the known heat-effective patches with an adhesive based on natural rubber, which is applied in the form of a solution with organic solvents on the plaster backing, is the relatively low release rate of the active ingredient.

The described and other disadvantages also apply to active ingredient-containing patches that contain other substances than those mentioned. Thus, WO 94/02123 describes an active ingredient patch based on hot-melt adhesive compositions which contains low-melting and / or highly volatile active ingredients in a concentration of 2.5% by weight to 25% by weight.

Active substance-containing tapes or wound dressings can only be adequately fixed on joints or thighs due to the mechanical stress. A frequent dressing change is also common to administer suitable active ingredients of the site to be treated at or around the joint.

To tackle the problem, highly adhesive patches, pants, or stocking-like bandages are provided.

The object of the present invention is therefore also to provide an application improvement for the care of the skin with skin conditions. In particular, it is an object of the present invention to provide a cellulite treatment set that is easy to use, also applicable to individual circumstances, sizes, skin areas and has no disadvantages with respect to conventional cellulite treatments.

These objects are achieved by a skin support according to claim 1. In the subclaims preferred embodiments of the edition are disclosed. The invention also includes their use. Furthermore, the tasks are solved by a care set consisting of a skin support and a wrap.

It was surprising and extremely surprising for a person skilled in the art that a skin layer comprising a matrix adhering to the human skin, at least one cosmetic active substance, wherein the active substance is contained in the matrix, achieves the stated object. Under the skin support according to the invention are all cosmetically applicable

Pads, päd, cloths, patches, dressings, cataplasm, bandages, masks understood.

According to the invention, this is not a medicine-effective active substance but a

Cosmetic contained in the adhesive matrix.

As a self-adhesive matrix, water-forming polymers, polyisobutylenes or cataplasms are preferred. In particular, an adhesive based on polyacrylic acid or polyacrylates is preferred.

The proportion of water-gelling polymer, e.g. Polyacrylic acid gel in the matrix regulates the adhesion. In particular, the matrices disclosed in DE 10260873 and DE 10056010 are herewith part of the present invention.

Polyacrylates which are advantageous according to the invention are acrylate-alkyl acrylate copolymers, in particular those selected from the group of the so-called carbomers or carbopols (Carbopol® is a registered trademark of the B.F. Goodrich Company). In particular, the acrylate copolymers or copolymers which are advantageous according to the invention are distinguished by the following structure:

Therein, R 'represents an alkyl radical, in particular a long-chain radical, and x and y represent numbers which symbolize the respective stoichiometric proportion of the respective comonomers.

Especially preferred according to the invention are acrylate copolymers and / or acrylate-alkylacrylate copolymers which are available under the trade names Carbopol® 1382, Carbopol® 981 and Carbopol® 5984 from the BF Goodrich Company, preferably polyacrylates from the group of carbopols of the types 980, 981, 1382, 2984, 5984 and more preferably Carbomer 2001.

Also advantageous are copolymers of _Ci-3 o _O-alkyl acrylates and one or more monomers of acrylic acid, methacrylic acid or esters thereof which are crosslinked with an allyl ether of sucrose or an allyl ether of pentaerythritol.

The water-gel-forming polymer, in particular polyacrylic acid and / or copolymers thereof, are preferably used in an amount of 2-55% by weight, more preferably between 5 and 30% by weight.

The preparation of the polymer matrices is carried out without using organic solvents, preferably at 40-95 ° C, in commercial mixers / kneaders or continuously in suitable extruders. As the water-gelling polymer, u.a. also monkey bread tree flour.

Advantageously, for example, the combination of water-gelling polymer (polyacrylic acid), seaweed extract, such as alginates and / or agar-agar, and mono- or polyhydric alcohol has been shown. In this way, soft, supple, self-adhesive hydrogel matrices can be selectively prepared using water, water-gelling polymer, seaweed extract and mono- or polyhydric alcohol as starting materials for the production and application as patches, TTS, cataplasms or cosmetic pads / matrices.

To provide particular performance properties, the polymer matrices may be treated with appropriate plasticizers, solubilizers, penetration enhancers, neutralizing agents, e.g. Tromethamol (2-amino-2- (hydroxymethyl) -1, 3-propanediol), triethanolamine (2,2 ', 2 "-Nitrilotriethanol) or NaOH, fillers and / or other known additives are added, but the addition is not mandatory ,

In a particularly preferred embodiment according to the invention contains the

Polymer matrix or gel matrix dermatological or cosmetic active ingredients for controlled local or systemic delivery to / in the skin, in amounts of up to 35 wt.%, Preferably up to 15 wt.%, In particular up to 2 wt.%.

Since the matrix according to the invention may also be a water-containing application form, an additional cooling effect is achieved per se is already cosmetically pleasant and contributes to well-being. This positive effect can be enhanced by the addition of other nourishing ingredients. In addition to glycerol, in particular serinol (3-amino-1,2-propanediol) or isoserinol (2-amino-1,3-propanediol) as well as urea and PCA (pyrrolidonecarboxylic acid) can be added as moisturizing substances. Of course, other substances can be added for this purpose.

Polyisobutylene PIB is also preferably used as the matrix system according to the invention.

Other matrices besides PIB polyisobutylene hydrophobic base polymers such as SIS (styrene / isoprene / styrene) triblock copolymers, SBS (styrene / butadiene / styrene) -

Triblock copolymers, SBR (copolymers of styrene and butadiene), synthetic and / or natural polyisoprenes, polyamide, polyester, co-polyester, polyurethanes and / or mixtures thereof possible. Of the multitude of known polymer matrices, polyacrylates and polyisobutylenes are particularly preferred.

Polyisobutylenes as matrix base meet the requirements of a self-adhesive, skin-friendly and painlessly removable polymer matrix particularly well, so that it is logical to select the polyisobutylenes preferably as the matrix base. SBR is a collective term for copolymers of styrene and butadiene, which contain the two monomers mostly in a weight ratio of about 23.5: 76.5, in exceptional cases also of 40:60 and whose macromolecules predominantly have the structural units I and II:

Water-containing matrices according to the invention can be used to moisturize very dry skin areas.

Thus, the polymer matrix of the invention as a patch, Päd or skin support for the care of the skin and especially for simple cooling purposes extremely well suited and, moreover, self-adhesive equipped, easy to use. It is also advantageous, according to avoid the disadvantages of the prior art, that the polymer matrix is solvent-free.

Preferred cosmetic active ingredient is carnitine, 3-hydroxy-4- (trimethylammonium) -butyric acid betaine, of the structure

The L-form of carnitine is widely distributed in animal tissues and is a characteristic component of the striped musculature v. a in dark meats. In vegetable foods such as fruits, vegetables and cereals, L-carnitine is only present in small amounts (<4 mg / 100 g).

The total amount of L-carnitine in the human body is about 20-25 g. In heart and skeletal muscle, 98% of the reserves are stored.

L-carnitine acts as a carrier molecule in the transport of long-chain fatty acids through the inner mitochondrial membrane into the mitochondrial matrix space, while medium and short-chain fatty acids can pass without esterification with L-camitine.

L-carnitine is available in many nutritional supplements. Target groups are (endurance) athletes as well as overweight persons who are offered L-carnitine for performance enhancement or as a slimming product (fat-boomer). The effectiveness is very controversial in both cases. Since L-carnitine deficiency is very rare in healthy people, no benefit is expected from camitine supplementation. Carnitine is not consumed in its biochemical function as a carrier, so that an increase in sales in the field of lipid metabolism does not lead to a greater need for carnitine. Conversely, an additional camitine intake does not result an increase in fatty acid oxidation. An excess of camitin is excreted through the kidney again.

In cardiovascular diseases, L-carnitine can improve cardiac output and overall cardiac resilience by increasing beta-oxidation of fatty acids, increasing ATP levels, reducing blood and tissue fat levels (free fatty acids), and increasing blood flow to the heart increase. In addition, L-carnitine is attributed to a certain immune-stimulating function, which is attributed to an increase in the activity of granulocytes, T-lymphocytes and killer cells.

Surprisingly, it has been found that a self-adhesive matrix containing camitin has a positive effect on the reduction of cellulite. The lymph circulation is stimulated.

A skin dressing according to the invention containing preferably camitin is therefore suitable for the care of skin areas affected by cellulite.

Also, a skin pad comprising a combination of an adhesive matrix of polyacrylic acid polymer and the cosmetic active ingredient camitin has been shown to be an advantageous treatment method of the skin affected by striae. It is therefore preferred in accordance with the invention to use the skin layer comprising polyacrylic acid polymers and camitin contained therein for the cosmetic treatment of the skin areas affected by striae.

Camitin or its derivatives are used in a proportion of 0.01 to 10 wt.%, Preferably 0.1 to 1 wt.%, In particular 0.5 wt.%, Based on the total mass of the matrix used.

Another cosmetic active ingredient in the context of the present invention is preferably caffeine.

Caffeine or else thein, guaranine, 1, 3,7-trimethylxanthine, methyltheobromine, the structure

is found in chlorogenic acid in coffee beans (0.8-2.5%), in dried black tea (up to 5%, formerly known as theine caffeine).

Caffeine exerts a lipolytic effect on the fatty tissue (increase in free fatty acids). Also known is the diuretic effect of coffee (diuretic).

Another preferred active ingredient in the context of the present invention is capsaicin, (E) - Λ / - (4-hydroxy-3-methoxybenzyl) -8-methyl-6-nonenamide; FEMA 3404, the structure,

Capsaicin as a natural raw material is usually not understood to mean the pure substance, but a mixture of capsaicin-homologous similar physiological action, the so-called capsaicinoids. So describes z. B. the monograph of USP 28 capsaicin with a content of at least 55% capsaicin, the sum of the contents of capsaicin and dihydrocapsaicin with min. 75% and the sum of the contents of all other capsaicinoids, such as. Nordihydrocapsaicin, with at most 15%.

The term capsaicin thus includes all of the following homologs of different composition:

Capsaicin dihydrocapsaicin

Homocapsaicin homodihydrocapsaicin

According to the invention, the capsaicinoids can be incorporated as a powdery substance mixture as well as in the form of capsaicin-containing extracts of different concentrations. Such extracts are for example, but not limited to, Capsicum oleoresin or as extra ctum Capsici (fluidum) referred to.

Also according to the invention, the capsaicinoids can be used in the form of triturations or pulverizations of the fruit components of the original Scharfpfefferpflanzen, z. B. as so-called chillies powder.

Another homologue of capsaicin according to the invention is nonylic acid vanillylamide, also referred to as nonivamide for short.

Nonivamid is synthetically produced and accordingly referred to as "synthetic capsaicin." On the mucosa, capsaicinoids cause tingling sensation or heat even in small amounts, for example in the known ABC patches capsaicinoids can be found.

In the following statements, the term capsaicin is understood as meaning all natural and synthetic capsaicinoids in all combinations, such as technical forms of application. The stated proportions of capsaicin relate to the absolute amounts of the particular capsaicinoid / the respective capsaicinoids in the matrix according to the invention and not to the content or the amount of the capsaicin-containing use form of the raw material.

Contrary to the known from the prior art drug cocktails, which are partially physiologically questionable, according to the invention only one (carnitine), two (carnitine - capsaicin, carnitine - caffeine) or three (carnitine - capsaicin - caffeine) are used.

Advantageously, these active ingredients are integrated side by side in the self-adhesive matrix and are released from this within the application time to the skin. The ratio of carnitine or its derivatives to capsaicin and / or caffeine is according to the invention preferably in a ratio of 1 to 100 to 1, advantageously 1 to 1. Ie at a preferred fraction of carnitine of 0.5 wt.%, A proportion of 0 , 5% by weight of caffeine has been shown to be extremely effective. The well-known warming effect of capsaicin, in combination with carnitine and its reducing effect of tissue fats, results in a reduction of so-called orange peel, cellulite, which is effective even in low concentrations.

Surprisingly, it has been found that the combination of carnitine and capsaicin and / or caffeine leads to a synergism with respect to the care and treatment of deficient skin conditions, such as orange peel or cellulite, spider veins, varicose veins or stria-affected skin areas.

The inventive composition containing carnitine alone and / or in combination with capsaicin and / or caffeine in the matrix of the skin layer shows a beneficial effect on the skin thus treated, the lymphatic circulation and heat development is stimulated.

Surprisingly, this synergism is shown positively in a skin layer which is in contact with the skin to be treated for several hours, up to 8 hours.

In addition to carnitine, capsaicin and / or caffeine, further suitable active substances in the sense of the invention may be added to said cosmetic matrices / pads either singly or in combination, in particular active ingredients which positively influence the condition of the skin. It has been shown that active substances have a positive influence on the aging skin, which reduces the development of wrinkles or even existing wrinkles. Therefore, particularly preferred active ingredients are biochinones, in particular ubiquinone Q10, creatine, creatinine, carnitine, acetylcamitin, biotin, isoflavone and isoflavonoids, genistein, arctiin, cardiolipin, lipoic acid, anti-freezing proteins, hops and hops malt extracts, and / or the restructuring of the connective tissue promoting substances, isoflavonoids and isoflavonoid-containing plant extracts such as soy and clover extracts that can be very well used in the matrices of the invention. It has also been shown that the matrix is particularly well-suited as active ingredients to support skin functions on dry skin such as vitamin C, biotin, creatine, creatinine, propionic acid, glycerin, green tea extracts, white tea extracts or solutions, eucalyptus oil , Urea and mineral salts such. B. NaCl, marine minerals and osmolytes such. As taurine, inositol, betaine, quaternary ammonium compounds to use. In similar The incorporation of active ingredients for alleviating or positively influencing irritative skin conditions, be it in sensitive skin in general or in skin irritated by noxious substances (UV light, chemicals), has proven to be advantageous. Here are agents such as sericosides, various extracts of the licorice, licochalcone A, silymarin or silyphos, dexpanthenol, ethanol, inhibitors of prostaglandin metabolism, in particular cyclooxygenase, and leukotriene metabolism, in particular 5-lipoxygenase, but also the 5-lipoxygenase inhibitor Protein, FLAP. The incorporation of modulators of pigmentation also proved to be advantageous. Here are agents that reduce the pigmentation of the skin and thus lead to a cosmetically desired lightening of the skin and / or reduce the occurrence of age spots and / or lighten existing age spots, such as tyrosine sulfate, dioic acid (8-hexadecene-1, 16 dicarboxylic acid), lipoic acid and liponamide, various extracts of licorice, kojic acid, hydroquinone, arbutin, fruit acids, especially alpha-hydroxy acids (AHAs), bearberry (Uvae ursi), ursolic acid, ascorbic acid, green tea extracts, aminoguanidine and / or pyridoxamine , Likewise, the matrices of the present invention have been found to provide an excellent basis for enhanced skin faster tanning (Advanced Glycation End Products (AGE), lipofuscins, nucleic acid oligonucleotides, purines and pyrimidines, NO-releasing agents, either with or without influence of UV light.

Preference is given to the use of green tea extract, since in combination with camitin a nourishing the skin and especially a cellulite-degrading effect could be observed.

The secret of white tea is due to its careful processing, so that it remains virtually unchanged. White tea extracts contain a high content of polyphenols, they are among the highly effective antioxidants that make free radicals harmless. The research that deals with these aspects of white tea is still relatively young. White teas are commercially available under the names Yin Zhen (Silver Needle) and Yin Long (Silver Dragon). Preference is therefore given to the use of white tea extract, since in combination with carnitine, the skin nourishing and especially a cellulite-degrading effect could be observed.

The matrix as a whole contains, including carnitine, capsaicin and / or caffeine, active ingredients in amounts of up to 35% by weight, preferably up to 15% by weight, very particularly preferably 0.02-2% by weight, based on the total mass of the matrix ,

For the prophylaxis of oxidative and degenerative damage and in particular for the treatment of the same, it has surprisingly been found useful to add antioxidants to the cosmetic matrices / pads. Advantageously, the antioxidants are selected from the group consisting of amino acids, eg glycine, lysine, arginine, cysteine, histidine, tyrosine, tryptophan, and their derivatives (as salt, ester, ether, sugar, nucleotide, nucleoside, Peptide and lipid combination), imidazoles, eg urocaninic acid, and their derivatives, as a salt, ester, ether, sugar, nucleotide, nucleoside, peptide and / or lipid combination, peptides such as D , L-camosine, D-camosine, L-camosine, anserine and their derivatives, eg as a salt, ester, ether, sugar, thiol, nucleotide, nucleoside, peptide and lipid combination, carotenoids, Carotenes, for example α-carotene, β-carotene, ψ-lycopene, phytoene, and their derivatives, for. As salt, ester, ether, sugar, nucleotide, nucleoside, peptide and / or lipid Verbidung, chlorogenic acid and its derivatives, as a salt, ester, ether, sugar, thiol , Nucleotide, nucleoside, peptide and / or lipid combination, aurothioglucose, propylthiouracil and other thiols, eg thioredoxin, lipoic acid, glutathione, cysteine, cystine, cystamine and their glycosyl, N-acetyl, methyl, ethyl , Propyl, amyl, butyl and lauryl, palmitoyl, oleyl, γ-linoleyl, cholesteryl and glyceryl esters, and their salts, dilaurylthiodipropionate, distearylthiodipropionate, thiodipropionic acid and derivatives thereof, as salt, ester, , Ether, sugar, thiol, nucleotide, nucleoside, peptide and / or lipid Verbidung, and sulfoximine compounds, eg Homocysteinsulfoximin, Buthioninsulfone, penta-, hexa-, Heptathio- ninsulfoximin, in very low tolerated dosages , eg pmol to μmol / kg. Further (metal) chelators, for example apoferritin, desferral, lactoferrin, α-hydroxyfatty acids, palmitic acid, phytic acid, and their derivatives, as salt, ester, ether, sugar, thiol, nucleotide, nucleoside, Peptide and / or lipid association, α-hydroxy acids, eg citric acid, lactic acid, malic acid, humic acid, bile acid, bile extracts, bilirubin, Biliverdin, melanin, EDTA, EGTA and their derivatives, unsaturated fatty acids and their derivatives, eg γ-linolenic acid, linoleic acid, oleic acid, folic acid and its derivatives, furfurylidenesorbitol and its derivatives, ubiquinone, ubiquinol, plastoquinone and their derivatives, as salt, ester -, ether, sugar, thiol, nucleotide, nucleoside, peptide and lipid Verbidung, vitamin C and derivatives, such as ascorbyl palmitate, Mg-ascorbyl phosphate, ascorbyl acetate, tocopherols and derivatives, such as vitamin E acetate, Trolox ^® , as well as phenolic compounds and plant extracts containing them, such as. B. flavonoids, z. As glycosylrutin, ferulic acid, caffeic acid, Furfurylidenglucitol, Butylhydroxytoluol, Butylhydroxyanisol, Nordihydroguajakharzsäure, Nordihydroguajaretsäure, trihydroxybutyrophenone and their derivatives, as a salt, ester, ether, sugar, nucleotide, nucleoside, peptide and lipid Verbidung , Uric acid and its derivatives, mannose and their derivatives, as a salt, ester, ether, sugar, thiol, nucleotide, nucleoside, peptide and lipid combination. Zinc and its derivatives, for example ZnO, ZnSO ₄ , selenium and its derivatives, for example selenium methionine, ebselen, stilbenes and their derivatives, for example stilbene oxide, trans-stilbene oxide, and the derivatives suitable according to the invention, as the salt, ester, ether, sugar -, thiol, nucleotide, nucleoside, peptide and / or lipid Verbidung, these agents mentioned.

The matrix will contain the antioxidant (s) in amounts of 0-35% by weight, preferably 0-15% by weight, most preferably 0.02-2%. As active ingredients, furthermore, for example, essential oils can be used. Essential oils are understood to be plant-derived concentrates, which are used as natural raw materials mainly in the perfume and food industry and consist more or less of volatile compounds. As examples of these compounds may be mentioned 1,8-cineole, limonene, menthol, borneol and camphor. Often the term essential oils is used for the volatile ingredients still contained in the plants. In the true sense, however, essential oils are mixtures of volatile components which are produced by steam distillation from vegetable raw materials.

Essential oils consist exclusively of volatile components whose boiling points are generally between 150 and 300 ° C. They contain mostly

Hydrocarbons or monofunctional compounds such as aldehydes, alcohols, Esters, ethers and ketones. Parent compounds are mono- and sesquiterpenes, phenylpropane derivatives and longer-chain aliphatic compounds. Some essential oils are dominated by an ingredient, for example eugenol in clove oil, with more than 85%, while other essential oils are complex mixtures of the individual components. Often the organoleptic properties are not influenced by the main components, but by side or trace components, such as Example of the 1,3,5-undecatrienes and pyrazines in galbanum oil. For many of the commercially important essential oils, the number of identified components is in the hundreds. Very many ingredients are chiral, very often one enantiomer predominates or is exclusively present, such as (-) - menthol in peppermint oil or (-) - linalyl acetate in lavender oil.

Oleum Eucalypti, Oleum Menthae piperitae, Oleum camphoratum, Oleum Rosmarini, Oleum Thymi, Oleum pinis sibricum, and Oleum Pini silverstris, as well as the terpenes 1,8-cineol and levomethanol, may be mentioned as preferred essential oils.

Other essential oils are oleum Abietis albae, Oleum Anisi, Oleum Aurantii Floris, Oleum Bergamottae, Oleum Calendulae infusum, Oleum camphoratum, Oleum Caryophylli, Oleum Chamomillae, Oleum Cinnamomi ceylanici, Oleum Citri, Oleum Citronellae, Oleum Cupressi, Oleum Cymbopogonis, Oleum Jecoris Oleum Lavendulae, Oleum Macidis, Oleum Majoranae, Oleum Melaleucae viridiflorae, Oleum Melissae, Oleum Menthae arvensis, Oleum Menthae piperatae, Oleum Millefolium, Oleum Myrrhae, Oleum myrtle, Oleum Oregani, Oleum Pini sibricum, Oleum Pinisilvestris, Oleum Salviae, Oleum Santali, Oleum Terebinthinae rectificat., Oleum Thymi Oleum Valerianae, Oleum Zingiberis and / or Tea Tree Oil.

Peppermint oils are essential oils obtained by steam distillation from leaves and inflorescences of various peppermint varieties, occasionally also from Mentha arvensis.

Citrus oils are essential oils derived from the peel of citrus fruits (bergamot, grapefruit, lime, mandarin, orange, lemon), often called citrus oils.

Citrus oils consist to a large extent of monoterpene hydrocarbons, mainly limonene (exception: bergamot oil, which contains only about 40%). For example, menthol can be used to surface anesthetize skin irritation caused by mild burns. The products produced in this way create a pleasant feeling of coldness and can be used to cool skin irritations, eg mild sunburn and razor bumps, which do not require any specialist treatment.

Menthol has three asymmetric carbon atoms and therefore exists in four diastereomeric pairs of enantiomers (see the formula pictures, the other four enantiomers are the corresponding mirror images).

(-) - menthol (+) - neomenthol (+) - isomenthol (+) - ne oisomenthc (1) (2) (3) (4)

The diastereomers which can be separated by distillation are referred to as neoisomenthol, isomenthol, neomenthol [(+) - form: constituent of Japanese peppermint oil] and menthol. The most important isomer is (-) - menthol (levomenthol), shiny, strongly peppermint-smelling prisms.

As further active ingredients, for example, camphor may be added for the treatment of skin irritation / mild pain, neuralgia and inflammation of the matrix. Camphor is 2-bomanone, 1, 7,7-trimethylbicyclo [2.2.1] heptan-2-one, see figure below. (+) - camphor

In addition, for advantageous embodiments of hydrogels / cataplasms according to the invention, hyperemic active substances such as synthetic active substances such as nicotinic acid derivatives, preferably benzyl nicotinate or propyl nicotinate, may also be mentioned, or antiphlogistics and / or analgesics.

Exemplary is nicotinic acid benzyl ester

benzyl

called.

Also, flavone and its derivatives, often collectively called "flavones", are advantageous additives in the sense of the present invention, characterized by the following basic structure (substitution positions indicated):

Some of the more important flavones, which can also preferably be used in formulations according to the invention, are listed in the following table:

In nature, flavones usually occur in glycosidated form.

According to the invention, the flavonoids are preferably selected from the group of substances of the generic structural formula

where Z ₁ to Z _{7 are} independently selected from the group consisting of H, OH, alkoxy and hydroxyalkoxy, where the alkoxy or hydroxyalkoxy groups can be branched and unbranched and can have 1 to 18 C atoms, and wherein GIy is selected is selected from the group of mono- and oligoglycoside radicals.

According to the invention, however, the flavonoids can also be chosen advantageously from the group of substances of the generic structural formula

where Z ₁ to Z _{6 are} independently selected from the group consisting of H, OH, alkoxy and hydroxyalkoxy, where the alkoxy or hydroxyalkoxy groups can be branched and unbranched and can have 1 to 18 C atoms, and wherein GIy is selected from the group of mono- and oligoglycoside radicals.

Preferably, such structures can be selected from the group of substances of the generic structural formula

where Glyi, Gly ₂ and Gly ₃ independently represent monoglycoside radicals or. GIy ₂ or GIy ₃ can also represent individually or jointly saturations by hydrogen atoms.

Glyi, Gly ₂ and Gly ₃ are preferably selected independently of one another from the group of the hexosyl radicals, in particular the rhamnosyl radicals and glucosyl radicals. However, other hexosyl radicals, for example allosyl, altrosyl, galactosyl, gulosyl, idosyl, mannosyl and talosyl, may also be advantageous to use. It may also be advantageous according to the invention to use pentosyl radicals.

Advantageously, Z ₁ to Z _{5 are} independently selected from the group H, OH, methoxy, ethoxy and 2-hydroxyethoxy, and the flavone glycosides have the structure

The flavone glycosides according to the invention are particularly advantageous from the group which are represented by the following structure:

wherein Glyi, Gly ₂ and Gly ₃ independently represent monoglycoside or oligoglycoside residues. GIy ₂ or GIy ₃ can also individually or together represent hydrogen atom saturation.

Glyi, Gly ₂ and Gly ₃ are preferably selected independently of one another from the group of the hexosyl radicals, in particular the rhamnosyl radicals and glucosyl radicals. However, other hexosyl radicals, for example allosyl, altrosyl, galactosyl, gulosyl, idosyl, mannosyl and talosyl, may also be advantageous to use. It may also be advantageous according to the invention to use pentosyl radicals.

It is particularly advantageous for the purposes of the present invention to choose the flavone glycoside (s) from the group α-glucosylrutin, α-glucosylmyricetin, α-glucosylisoquercitrin, α-glucosylisoquercetin and α-glucosylquercitrin.

Particularly preferred according to the invention is α-glucosylrutin.

Naringin (aurantiin, naringenin-7-rhamnoglucoside), hesperidin (3 ', 5,7-trihydroxy-4'-methoxyflavanone-7-rutinoside, hesperidoside, hesperetin-7-O-rutinoside) are also advantageous according to the invention. Rutin (3,3 ', 4', 5,7-pentahydroxyfly of 3-rutinoside, quercetin-3-rutinoside, sophorin, birutane, rutabion, taurutin, phytomelin, melin), troxerutin (3,5-dihydroxy-3 \ 4 \ 7-tris (2-hydroxyethoxy) -flavone-3- (6-O- (6-deoxy-α-L-mannopyranosyl) -β-D-glucopyranoside)), monoxerutin (3,3 ', 4 ', 5-tetrahydroxy-7- (2-hydroxyethoxy) flavone-3- (6-O- (6- deoxy-.alpha.-L-mannopyranosyl) .beta.-D-glucopyranoside), dihydrorobinetine (3,3 ', 4', 5 ', 7-pentafluorooxyflavanone), taxifolin (3,3', 4 ', 5,7 Pentahydroxyflavanone), eriodictyol-7-glucoside (3 ', 4', 5,7-tetrahydroxyflavanone-7-glucoside), flavanomareϊn (3 ', 4', 7,8-tetrahydroxyflavanone-7-glucoside) and isoquercetin ( 3,3 ', 4', 5,7-pentahydroxyflavanone-3- (β-D-glucopyranoside) or their derivatives.

According to the invention, the requirement for a self-adhesive skin layer is met surprisingly simply and effectively. The skin layer according to the invention preferably comprises carnitine as the active ingredient and polyacrylic acid as the basis of the adhesive matrix has, on the one hand, good adherence to the skin, which must be maintained over the entire period of the intended active ingredient dosage, and, on the other hand, residue-free and painless removability.

Since the adhesive behavior and consistency of an active substance-containing adhesive matrix result from the interaction of all the individual components, the production of a skin dressing actually involves many problems, as shown in the prior art.

These problems have surprisingly been solved by the particularly preferred variant. It has been shown to be preferred a skin support according to the invention, in which a combination of preferred polyacrylate adhesive (sodium polyacrylate / polyacrylic acid sol. 20%), carnitine is selected as the cosmetic active ingredient and the following constituents of the support:

Water, sodium carboxymethylcellulose, dihydroxyaluminum aminoacetate, hydroxypropylcellulose, glycerol, disodium edetate, kaolin, methyl parahydroxybenzoate, propylene glycol and / or Ricinus Communis (Castor OiI). The skin layers produced in this way, which are preferred according to the invention, can easily be placed on the skin and exert a pressure on the skin which causes the cellulite or striae phenomena due to the specific adhesive force.

As a significant influence on the pressure is the material of the patch and its nature to look at. For example, if it is a relatively flexible, elastic material, then the material can dodge the pressure generated when applied to the skin. Pressure on the skin is not achieved. However, if the paving material is rigid and inflexible, it is detrimental to a long wearing time and the comfort of the patient. Other influencing factors on the pressure exertion, which indirectly also have something to do with the paving material properties, are

Elongation of the material when applied, i. with a strong tension of the plaster over the skin and appropriate adhesion on the skin could the

Skin are contracted and the pressure is counterproductive.

- Moisture of the skin and thus moisture permeability of the material Stickiness on the skin

- Dynamic pressures and / or shear forces due to movement of the skin area

According to the invention, these influencing variables are selected by the preferred ones

Components of the adhesive matrix, the carrier material and the cosmetic active ingredients optimally coordinated.

According to the invention, it has proved advantageous to reduce the skin symptoms influenced by cellulite if the skin layer has an adhesion capacity

(adhesion time-value) of greater than 5 s. The adhesion time-value becomes after one

Standard measurement methodology is determined, as outlined below.

On a test device according to Figure 1, a measurement of the adhesiveness is performed. Figure 1 shows a sloping plane with a slope of 30 ° on which a test skin with the adhesive side (3) is placed up. The upper and lower part is covered by a cardboard (2), so that a distance of 5 cm is maintained. The steel ball (1) is placed at the top of the inclined plane.

Before each measurement, steel balls (diameter 19.0 mm, mass 28.2 g) are first cleaned in toluene and then in anhydrous acetone of fat residues and other impurities. The evaporation time of the solvent to use the steel balls must be at least 2 minutes and may not exceed 10 minutes.

The self-adhesive skin layer to be tested is placed with the support side downwards in the middle on an inclined plane (30 °), so that the support ends overlap the markings attached to the side of the inclined plane. Then by means of a Sheet of paper (standard copy paper or equivalent quality) the top of the inclined plane, starting from the top edge, covered over a length of 10 cm, that paper possibly folded over the edge and secured to a steel pin against slipping. Below the covered part of the inclined plane follows the test section of the skin support with the exposed adhesive layer. Length of the respective measuring section is 5 cm. Subsequently, the lower part of the plane, starting from the lower end of the respective measuring section, also covered with paper. Then a steel ball is placed by hand (use powder-free gloves) on the upper end of the inclined plane and brought with minimum force to unroll on the plane. As soon as the steel ball on the skin support comes to a standstill, a stopwatch is triggered (see Figure 1).

The steel ball must be held within the exposed area of the skin pad for at least 5 seconds from the adhesive layer of the supports to meet the adhesive requirement, i.e. achieve an adhesion time-value greater than 5.

In these studies, it has been found that the skin pads of the present invention comprising the following ingredients exhibit a corresponding adhesion time-value. The invention adhering to the human skin matrix containing camitine as a cosmetic active ingredient has an adhesion time-value of greater than 5 and thus has the necessary characteristics to the requirements of the bond strength over the period of application (up to 8 h), a pain - And residue-free removability and a skin-friendly bond to meet. Preferred is a polyacrylate adhesive containing camitin and the specific ingredients * having an adhesion time-value> 5.

Table: adhesion time value

Polyacrylates containing: sodium polyacrylate / polyacrylic acid sol. 20%, water, sodium carboxymethylcellulose, dihydroxyaluminum aminoacetate,

Hydroxypropylcellulose, Glycerol, Disodium edetate, Kaolin, Methyl parahydroxybenzoate, Propylene glycol and Ricinus Communis (Castor OiI)

For application as a skin layer, patch or cosmetic matrix / cosmetic pedicle matrices according to the invention are pressed as a layer on a release medium of paper, foil o. Ä., Rolled o. Ä. And on the back with any support material such. a polymer film, textiles o.a. concealed. According to the invention, the matrices are preferably applied to a carrier material in the warm state by means of a dosing pump and most preferably by a corresponding cavity in the press or rolling mills in a three-dimensional form. The shape of the generated patch or cosmetic matrix is determined by the shape of the cavities and is not subject to any restriction; be ellipsoidal running with flat edges or, for example, angular.

The matrix according to the invention is particularly advantageously applied to a flexible covering layer, in particular when used as a skin layer, plaster or cosmetic matrix. An appropriate plaster or a corresponding cosmetic matrix of a carrier, such as films, nonwovens, woven fabrics, foams, etc., of the adhesive matrix and covering film, covering paper or release paper for protecting the adhesive matrix prior to the use of the plaster, is built up.

In a further preferred embodiment of the invention are used as the carrier polymer films, nonwovens, fabrics and combinations thereof. As support materials u.a. Polymers such as polyethylene, polypropylene, polyesters, polyethers, polyether-ester copolymers and polyurethane or natural fibers to choose from.

In summary, it can be said that all rigid and elastic fabrics made of synthetic and natural raw materials are suitable as carrier materials. Preferred are carrier materials that can be used so that they meet the characteristics of a functional skin layer. By way of example, textiles such as woven fabrics, knitted fabrics, scrims, nonwovens, laminates, nets, films, foams and papers are listed, which have a pleasant feel for the user. Furthermore, these materials can be pre- or post-treated. common Pretreatments are corona and hydrophobing; Common aftertreatments include calendering, tempering, laminating, stamping and covering.

It is particularly advantageous if the carrier material can be sterilized, preferably γ- (gamma) sterilizable.

Very particularly preferred according to the invention are support materials having a good oxygen, air and water vapor permeability.

For example, these support materials can be provided by screen printing or analogous processes selectively with strongly adhesive polymers such as polyisobutylene, SEBS block polymers, natural and / or synthetic rubbers, polyurethane o. Ä. Which overlap at the side edges of the applied hydrogel matrix to the outside. The matrices of the invention prepared in this way can be adhesively fixed to parts of the body which are subject to high mechanical stress, such as elbows or knee joints, where the own adhesion of the hydrogels / cataplasms is no longer sufficient for permanent application.

Finally, the matrix can be covered or provided with an adhesive-repellent carrier material, such as siliconized paper. On its self-adhesive side, which later faces the skin, the cosmetic matrix according to the invention is usually covered over its entire width until use with an adhesive-repellent carrier material. This protects the self-adhesive layer from the well skin-compatible adhesive of the gel matrix, which has preferably been applied by the transfer process, and additionally stabilizes the entire product. The cover may be formed in one piece or preferably in two parts in a known manner.

Other embodiments may be such that there is a second matrix of higher drug solubility as a reservoir between the back of the matrix and the cap support. This could be a deep-drawn film with a pure active substance instead of a second matrix and carrier. On the adhesive side of the matrix is partially, for example, at the edge, a second matrix with high bond strength for additional fixation, but insufficient drug solubility. The drug-free matrix is located between two non-anchoring films and is used for fixation. The present invention furthermore relates to the use of the skin care composition for the care of the skin, in particular those parts of the skin which are affected by cellulite or stria. In particular, the use of the drug-doped gel matrices for use as PADs for the cosmetic and beneficial treatment of undesired skin manifestations, such as cellulite or stria, is to be emphasized.

The use of the polymer matrix as cosmetic or dermatological pads or patches is particularly suitable in a planar embodiment with a total area of 0.2 to 1000 cm ² . Preferably in an area of 8 to 15 cm to 10 to 20 cm. Thus, for example, large areas (up to 1000 cm ² ) are covered to treat the orange peel on the thighs.

Preference is given to using the self-adhesive polymer matrix in a planar or spatial embodiment with a polymer matrix weight fraction of from 0.1 to 1000 g, in particular of 14 g, per skin layer. The shape can be designed round, oval, angular or adapted to the skin.

The invention further includes combining the skin patch with a wrap compressing the skin to a certain pressure.

Studies have shown that compression of the lymphatic circulation of the skin can be stimulated. Too much compression, however, leads to congestion and, as a result, possibly to edema or thrombosis.

As a further characteristic of the skin pads or the kit according to the invention are the

Pressure values of the applied on the human skin pads or sets have been determined.

The measurement was carried out in a uniaxial tensile test according to DIN 53835 - tensile stress with repeated stress between constant strain limits and immediate reversal at the reversal points. The upper yield strength was set at 30%. It was determined the strain-related tensile force of the support under load in the 5th cycle for the elongation, the stretching of the support after application to the leg ensprach. The Laplace equation was used to calculate the pressure of the traction, leg circumference, and circumference or circumference. The inventively determined pressures were between about 4 - 7 mmHg. Pads according to the invention comprising such pressure values are therefore preferred. Preference is therefore given to a skin layer or a set consisting of skin layer and wrap, which generates a pressure of up to a maximum of 10 mm Hg on the skin. The Sez is designed as described above, so that a maximum pressure of 10 mm Hg is generated on the skin.

A wrapping is known from the prior art, which is called "wrapping", whereby a kind of cellophane wrap is pulled over the cellulite-affected areas of the skin.A disadvantage is the fully occlusive skin covering, which can lead to skin macerations, itching and other unpleasant skin symptoms.

These disadvantages were to be avoided according to the invention.

As wrapping bandages, tape, stockings, pants and / or cuffs can be considered as well as combinations thereof.

According to the invention, a sleeve is preferably used as a wrapping, which is to some extent elastic and permeable to air and water vapor.

The cuff preferably has a conical section. As a result, an adverse higher compression at the upper thigh portion located to the hip is avoided when putting on the thigh.

The cuff is equipped with one end adhering to itself, so that it can be attached to itself.

As a result, no different sleeves have to be offered for the different users in size and shape. According to the invention, the cuff thus includes all common sizes due to the elasticity and the self-closing properties and it is advantageously created for the manufacturer "one size fits it all" situation. Advantageously, markings are provided on the cuff, which allow the user to easily create depending on the thigh circumference sufficient compression with the cuff.

As a carrier material for the cuff numerous materials on film, fabric, knitted fabric, nonwoven, gel or foam base are already known and are also used in practice. The materials must be tolerated by the skin, permeable to air and water vapor, as well as easy to model and cuddly. Because of these requirements, a carrier which is as thin or as soft as possible is often preferred. For handling and use of the support materials but also a sufficient strength and possibly limited elasticity are required. Furthermore, the support material should have sufficient strength and low ductility even after wetting.

Thin carriers, in particular those made of nonwovens, are well permeable to air and water vapor.

Suitable support materials are stretchable fabrics of synthetic and natural raw materials. Preferably, carrier materials that can be used that they meet the properties of a functional association. By way of example, textiles such as wovens, knits, fabrics, nonwovens, laminates, nets, films, foams and papers are listed which have a ductility of at least 10% under a load of 10 N / cm. In addition, the combinations of the materials mentioned are also suitable.

Furthermore, these materials can be pre- or post-treated. Common pretreatments are corona and hydrophobing; Common aftertreatments are calendering, tempering, laminating, stamping and covering, UV / IR irradiation or electron irradiation.

The invention thus advantageously comprises a combination of self-adhesive skin layer and cuff according to the invention. This combination is predestined as a set for skin care and especially for cellulite treatment. The kit according to the invention may comprise in use a cuff and 4 to 10 skin pads, so that a long-term and therefore effective treatment is ensured.

In skin care and in particular cellulite treatment, the skin layer according to the invention, containing advantageously carnitine or carnitine and capsaicin, is applied to the lateral thigh area, for example. Due to the self-adhesive property of the skin layer with an adhesion time-value> 5, this is immediately fixed and does not slip. Subsequently, the user can possibly fold over the cuff and, due to the self-closing end, simply close it depending on the desired degree of compression and thigh size. Due to the advantageous design of the skin layer with skin-care ingredients, non-irritating Klebematrizes, pain-free redetachability and the skin-friendly cuff, which is permeable to air and water vapor, the user will feel no inconvenience even after prolonged use.

A preferred application time is up to 8 hours, so that according to the invention the skin layer can preferably be worn overnight.

drawing

Claims

claims:

1. Skin support comprising a matrix adhering to the human skin, - at least one cosmetic active ingredient, characterized in that the active substance is contained in the matrix.

2. Skin support according to claim 1, characterized in that the matrix consists of polymers which gel in water, in particular of at least one polyacrylic acid polymer.

3. Skin support according to claim 1, characterized in that the matrix of polyisobutylene, hydrophobic base polymers such as SIS (styrene / isoprene / styrene) - Triblockcopolymere, SBS (styrene / butadiene / styrene) -Triblockcopolymere, SBR (copolymers of styrene and butadiene), synthetic and / or natural

Polyisoprenes, polyamide, polyester, co-polyester, polyurethanes and / or mixtures thereof, preferably from polyisobutylene exists.

4. Skin support according to one of the preceding claims, characterized in that is selected as the cosmetic active ingredient carnitine or its derivatives.

5. Skin support according to one of the preceding claims 1 to 3, characterized in that is selected as the cosmetic active ingredient capsaicin or its derivatives.

6. Skin support according to one of the preceding claims 1 to 3, characterized in that caffeine or its derivatives is selected as the cosmetic active ingredient.

7. Skin support according to claim 4, characterized in that in addition to carnitine or its derivatives are capsaicin and / or caffeine in the matrix.

8. Skin support according to claim 7, characterized in that carnitine or its derivatives to capsaicin and / or caffeine in a ratio of 1 to 100 to 1, preferably 1 to 1, is included.

9. Skin support according to claim 4, 7 or 8, characterized in that carnitine or its derivatives in a proportion of 0.01 to 10 wt.%, Preferably 0.1 to 1 wt.%, In particular 0.5 wt.%, based on the total mass of the matrix.

10. Skin support according to one of the preceding claims 7 to 9, characterized in that in addition at least one further active ingredient besides carnitine, capsaicin and / or caffeine, is included.

11. Skin support according to claim 10, characterized in that the additional active ingredient is selected from the group creatine / creatinine, alpha-glucosylrutin, taurine,

Serinol / Isoserinol, Licorice Aqua PU, Licorice PU, Silymarin / Silyphos, Lipoic Acid, Liponamide, Green Tea Extract, Vitamin C, 8-Hexadecene-1, 16-Dicarboxylic Acid, Isoflavone, Isoflavonoid-containing Plant Extracts, Such as Soy and Clover Extracts, Ubiquinone Q10, sericosides, tyrosine sulfate, jojoba oil and / or aloe vera.

12. Skin support according to claim 11, characterized in that the additional active ingredient is green tea extract.

13. Skin support according to claim 11, characterized in that the additional active ingredient is white tea extract.

14. Skin support according to one of the preceding claims comprising a polyacrylate

Adhesive composition comprising sodium polyacrylate / polyacrylic acid sol. 20%, carnitine as cosmetic active ingredient and as adhesive components water, sodium carboxymethylcellulose, dihydroxyaluminum aminoacetate, hydroxypropylcellulose, Glycerol, disodium edetate, kaolin, methyl parahydroxybenzoate, Propylene glycol and / or Ricinus Communis (Castor OiI).

15. Skin support according to one of the preceding claims, characterized in that the adhering to the human skin matrix containing camitin as the cosmetic active ingredient has an adhesion time-value of greater than 5.

16. combination set of one or more skin coverings according to one of the preceding claims and an air and water vapor permeable Hautumwicklung.

17. Set according to claim 16, characterized in that a cuff is selected as wrapping.

18. Set according to claim 17, characterized in that the collar is equipped at one end with a selbstverschließbarem end.

19. Set according to claim 17 or 18, characterized in that the sleeve is conically cut.

20. Set according to one of claims 16 to 19, characterized in that the wrapping is designed so that it generates a pressure on the skin of a maximum of 10 mm Hg.

21. Use of the skin pads according to one of claims 1 to 15 for the care of affected by cellulite skin.

22. Use of the kit according to any one of claims 16 to 20 for the care of the skin, in particular those skin parts which are affected by cellulite.

23. Use of the skin dressings according to any one of claims 1 to 15 for the treatment of stria-affected skin.

24. Use according to claim 23, characterized in that the skin layer comprises polyacrylic acid polymers and camitin contained therein and is used for the cosmetic treatment of the skin areas affected by striae.