EP1397107A2

EP1397107A2 - Cosmetic and dermatological preparations in the form of water-in-oil emulsions having a silicon oil and talcum powder content

Info

Publication number: EP1397107A2
Application number: EP02700228A
Authority: EP
Inventors: Rainer Kröpke; Stephanie Von Der Fecht; Astrid Heptner
Original assignee: Beiersdorf AG
Current assignee: Beiersdorf AG
Priority date: 2001-02-15
Filing date: 2002-02-13
Publication date: 2004-03-17
Also published as: WO2002064103A2; DE10107628A1; WO2002064103A3

Abstract

The invention relates to cosmetic or dermatological preparations which (a) represent water-in-oil emulsions, and (b) have a talcum powder content, (c) the oil phase amounting to between 20 and 55 % of the total weight of the preparation, and (d) said oil phase containing between 0.5 and 12 wt. %, in relation to the total weight of the preparation, of at least one silicon oil.

Description

description

Cosmetic and dermatological preparations in the form of W / O emulsions containing silicone oils and talc

The present invention relates to cosmetic and dermatological preparations in the form of W / O emulsions containing low molecular weight silicones.

The skin is the largest human organ. Among its many functions (for example for heat regulation and as a sensory organ), the barrier function that prevents the skin (and ultimately the entire organism) from drying out is probably the most important. At the same time, the skin acts as a protective device against the penetration and absorption of substances coming from outside. This barrier function is brought about by the epidermis, which as the outermost layer forms the actual protective cover against the environment. At around a tenth of the total thickness, it is also the thinnest layer of the skin.

The epidermis is a stratified tissue in which the outer layer, the stratum corneum, is the important part for the barrier function. The skin model of Elias (PM Elias, Structure and Function of the Stratum Corneum Permeability Bar er, Drug Dev. Res. 13, 1988, 97-105), which is recognized by experts today, describes the hom layer as a two-component system, similar to a brick wall (bricks and mortar model). In this model, the homocytes (komeocytes) correspond to the bricks, the complex lipid membrane in the intercellular spaces corresponds to the mortar. This system essentially represents a physical barrier against hydrophilic substances, but due to its narrow and multilayer structure it is equally difficult for lipophilic substances to pass through. In a particular embodiment, the present invention relates to cosmetic or pharmaceutical preparations with a reduced feeling of stickiness, to processes for their preparation and to the use of active ingredients for reducing the feeling of stickiness of cosmetic preparations.

Cosmetic skin care is primarily understood to mean that the natural function of the skin as a barrier against environmental influences (e.g. dirt, chemicals, microorganisms) and against the loss of the body's own substances (e.g. water, natural fats, electrolytes) is strengthened or restored.

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

The aim of skin care is also to compensate for the loss of fat and water in the skin caused by daily washing. This is especially important when the natural regeneration ability is insufficient. In addition, skin care products are intended to protect against environmental influences, especially sun and wind, and to delay skin aging.

Medical compositions usually contain one or more drugs in effective concentration. For the sake of simplicity, reference is made to the legal provisions of the Federal Republic of Germany (e.g. cosmetics regulation, food and drug law) for a clear distinction between cosmetic and medical use and corresponding products.

Common manifestations of cosmetic or dermatological preparations are finely dispersed multiphase systems in which one or more fat or oil phases are present in addition to one or more water phases. Of these systems, the actual emulsions are the most widespread.

Furthermore, it was an object of the invention to develop cosmetic bases for cosmetic preparations which are notable for good skin tolerance. It was also an object of the present invention to provide products with the widest possible range of applications. For example, the basis for preparation forms such as cleaning emulsions, face and body care preparations, but also very medicinal-pharmaceutical forms of administration should be created, for example preparations for acne and other skin symptoms.

The formulation of stable water-in-oil emulsions with above-average skin care performance (skin moisturizing and smoothing) in combination with very good sensory properties is currently still very difficult. This is not least due to the fact that the addition of skin care additives - such as Moisturizers, certain lipids or film formers - lead to unstable emulsions and / or a dull or sticky or even greasy feeling on the skin when the product is distributed on the skin, so that the emulsions may then be effective, but at the same time are sensorially unacceptable and / or unstable.

Emulsions are generally understood to mean heterogeneous systems which consist of two liquids which are immiscible or only miscible with one another to a limited extent and are usually referred to as phases. In an emulsion, one of the two liquids is dispersed in the other liquid in the form of very fine droplets.

If the two liquids are water and oil and oil droplets are finely distributed in water, then it is an oil-in-water emulsion (O / W emulsion, e.g. milk). The basic character of an O / W emulsion is characterized by the water. A water-in-oil emulsion (W / O emulsion, eg butter) is the opposite principle, the basic character being determined here by the oil.

In the past, it has proven itself to be useful to select at least parts of a cosmetically used oil phase from the group of cyclic and / or linear silicones, which are also referred to as "silicone oils" in the context of the present disclosure. However, silicones have some disadvantages, mainly in terms of formulation However, until now they were considered indispensable if one wanted to formulate cosmetic preparations based on silicone oils. Of course, a multitude of possibilities is known to the person skilled in the art for formulating stable W / O preparations for cosmetic or dermatological use, for example in the form of creams and ointments which are spreadable in the range from room temperature to skin temperature, or as lotions and milks which tend to flow in this temperature range. However, the prior art knows only a few formulations which are so thin that they would be sprayable, for example.

Preparations for cosmetic or therapeutic skin care in particular contain mixtures of oils or oil-soluble substances and water or water-soluble substances as essential components. Certain components of the water phase which are very advantageous from a cosmetic point of view, e.g. Glycerin, but also the oil phase, e.g. tocopheryl acetate, have a negative effect on the sensory properties of the preparations in higher concentrations. This often manifests itself in an increased feeling of stickiness or even a feeling of greasiness when using corresponding preparations, which in individual cases may not be marketable because they are not accepted by consumers or judged negatively.

It is known to reduce this feeling of stickiness or also of feeling of lubrication by adding certain substances, for example some selected powder raw materials, in particular talc. Apart from the fact that this is rarely completely successful, such an addition also changes the viscosity of the product in question and reduces the stability.

Polyols (glycerin, propylene glycol, butylene glycol, sorbitol etc.) are used to increase the skin-moisturizing effect of water-in-oil emulsions. These preparations are particularly sticky with a polyol content of more than 5% and are not acceptable for sensory reasons. After applying the product, there should be little or no residue on the skin.

The term "viscosity" means the property of a liquid to oppose the mutual laminar displacement of two adjacent layers with resistance (toughness, internal friction). Today, this so-called dynamic viscosity according to η = τ / D is defined as the ratio of the shear stress to the velocity gradient perpendicular to the direction of flow. For Newtonian liquid η at a given temperature is a substance constant with the Sl unit Pascal second (Pa s).

The quotient v = η / p from the dynamic viscosity η and the density p of the liquid is referred to as the kinematic viscosity v and is given in the SI unit m ² / s.

Fluidity (φ) is the reciprocal of viscosity (φ = 1 / η). In the case of ointments and the like, the use value is determined, among other things, by the so-called speed. The speed of an ointment or ointment base or the like means its property of pulling threads of different lengths when tapping; accordingly, a distinction is made between short and long-lasting fabrics.

While the graphical representation of the flow behavior of Newtonian fluids results in a straight line at a given temperature, the so-called non-Newtonian fluids often show considerable deviations depending on the respective velocity gradient D (shear rate γ) or the shear stress τ. In these cases the so-called apparent viscosity can be determined, which does not obey Newton's equation, but from which the true viscosity values can be determined by graphic methods.

The falling body viscosity is only suitable for the investigation of Newtonian liquids and gases. It is based on the Stokes law, according to which the dynamic viscosity η for a ball falling through a liquid flowing around it

2 r ² ( _Pκ - p _F ,) - g ^η 9-v can be determined, where r = radius of the sphere, v = falling speed, r _κ = density of the sphere, r _R = density of the

Liquid and g = gravitational acceleration.

W / O emulsions with a low viscosity, which have a storage stability, as is required for marketable products, can only be formulated with great effort according to the prior art. Accordingly, the range of such mulations extremely low. Nevertheless, such formulations could offer the consumer previously unknown cosmetic services.

W / O emulsions with a higher viscosity are quite common preparations. Without using cyclic silicone oils, however, such preparations tend to have a cosmetically undemanding effect and are not particularly appealing to the skin.

It was an object of the present invention to provide the basis for preparations which, on the one hand, make it possible to prepare preparations of higher viscosity (which one would commonly call creams), but on the other hand also provide a good basis for preparations which have a low or even zero have a very low viscosity (for example, formulations which would commonly be called lotions), but without some of the disadvantages of the prior art.

The object of the present invention was therefore to eliminate the above-described disadvantages of the preparations of the prior art.

Surprisingly, these tasks are solved by cosmetic or dermatological preparations, which

(a) represent water-in-oil emulsions which

(b) have a talc content

(c) the oil phase making up 20 to 55% of the total weight of the preparation and

(d) wherein the oil phase contains from 0.5 to 12% by weight, based on the total weight of the preparation, of one or more silicone oils.

It was therefore not foreseeable for the person skilled in the art that the preparations according to the invention act better than moisturizing preparations, are easier to formulate, better promote smoothing of the skin, are better cared for, serve better as a vehicle for cosmetic and medical-dermatological active ingredients better sensory properties, such as the spreadability on the skin or the ability to be absorbed into the skin, would have greater stability against decay in oil and water phases and would be better biocompatible than that Preparations of the state of the art.

The preparations according to the invention are both sprayable to flowable and can be formulated in a cream-like manner, have very good cosmetic properties, in particular with regard to stickiness, and have very good skin compatibility and skin care performance.

According to the invention, it is possible and advantageous to freely choose the proportion of the oil phase of the preparations according to the invention in the range from, for example, 20 to 35% by weight, based on the total weight of the preparations.

Talc is a hydrated magnesium silicate with the composition 3MgO ^• 4SiO ₂ ^• H ₂ O or Mg ₃ (Si ₄ Oιo) ^• (OH) ₂ or Mg ₆ (OH) ₄ [Si ₈ O ₂₀ ] or Mg ₁₂ [Si ₁₆ O ₀ ], which, however, can contain proportions of hydrated magnesium aluminum silicate of up to 12% by weight Al ₂ O ₃ , based on the entire product. Talc is a white, mostly very fine, practically odorless to earthy-smelling powder that feels greasy when rubbed without being fat. It is insoluble in water, cold acids or alkalis. Depending on the country of origin, the chemical purity of the talc (based on the content of anhydrous magnesium silicate) should be 93-98%. Talc is used for the manufacture of pharmaceutical powders, but above all for the manufacture of cosmetic powders that are used for personal hygiene, but is also suitable for the manufacture of tablets as a lubricant or flow agent.

The particle diameter (equivalent spherical diameter) of the talc should be in the range of 0.5-50 μm. In general, both talc have proven that not more than 5 microns wt .-% of particles less than 1 and not more than 5 wt .-% of part ^¬ chen contain over 50 microns in size. Preferably the proportion of particles is larger than 40 μm in diameter (sieve residue), at most 2% by weight. The average particle diameter (D 50) is preferably 5-15 μm.

The content of accompanying substances should not be more than 1.6% by weight of Fe ₂ O ₃ , 1% by weight of CaO and 1% by weight of unbound water (loss on drying at 1050 ° C.). The content of hydrated magnesium aluminum silicate can be up to 60% by weight, calculated as Al ₂ O ₃ , up to 12% by weight.

Advantageously according to the invention, the shaped WO emulsions contain 0.1-20% by weight of talc, preferably 0.5-5% by weight, based on the total weight of the preparations.

The following can be used as basic components of the preparations according to the invention:

Water or aqueous solutions aqueous ethanolic solutions natural oils and / or chemically modified natural oils and / or synthetic oils;

Fats, waxes and other natural and synthetic fat bodies, preferably esters of fatty acids with alcohols of low C number, e.g. with isopropanol, propylene glycol or glycerin, or esters of fatty alcohols with low C number alkanoic acids or with fatty acids;

Alcohols, diols or polyols of low C number, as well as their ethers, preferably ethanol, isopropanol, propylene glycol, glycerin, ethylene glycol, ethylene glycol monoethyl or monobutyl ether, propylene glycol monomethyl, monoethyl or monobutyl ether, diethylene glycol monomethyl or monoethyl ether and similar Products.

Mixtures of the abovementioned solvents are used in particular.

It is preferred to select the oil phase of the preparations according to the invention from the group of the cyclic and / or linear silicones, which are also referred to as “silicone oils” in the context of the present disclosure. Such silicones or silicone oils can be present as monomers, which are generally obtained by Structural elements are characterized as follows:

Linear silicones with a plurality of siloxyl units which can advantageously be used according to the invention are generally characterized by structural elements as follows:

wherein the silicon atoms can be substituted with the same or different alkyl radicals and / or aryl radicals, which are generally represented here by the radicals R 1 - R (to say that the number of different radicals is not necessarily limited to up to 4), m can assume values from 2 - 200,000.

Cyclic silicones to be used advantageously according to the invention are generally characterized by structural elements as follows

wherein the silicon atoms can be substituted with the same or different alkyl radicals and / or aryl radicals, which are generally represented here by the radicals R ^ - R ₄ (to say that the number of different radicals is not necessarily limited to up to 4) , n can assume values from 3/2 to 20. Broken values for n take into account that there may be odd numbers of siloxyl groups in the cycle.

Phenyltrimethicone is advantageously chosen as the silicone oil. Other silicone oils, for example dimethicone, phenyldimethicone, cyclomethicone (octamethylcyclotetrasilo- xan) for example hexamethylcyclotrisiloxane, polydimethylsiloxane, poly (methylphenylsiloxane), cetyldimethicone, behenoxydi ethicone can be used advantageously for the purposes of the present invention.

Mixtures of cyclomethicone and isotridecyl isononanoate and those of cyclomethicone and 2-ethylhexyl isostearate are also advantageous.

However, it is also advantageous to choose silicone oils of a similar constitution to the compounds described above, the organic side chains of which are derivatized, for example polyethoxylated and / or polypropoxylated. These include, for example, polysiloxane-polyalkyl-polyether copolymers such as the cetyl-dimethicone copolyol, the (cetyl-dimethicone copolyol (and) polyglyceryl-4-isostearate (and) hexyl laurate)

According to the invention, the oil phase of the emulsions preferably consists of 0.5 to 12% by weight of silicones of the type listed under point (b), although it is possible to accept up to half without major disadvantages to choose the total weight of the oil components from the group of other oil components. These can then advantageously be selected from the group of the esters from saturated and / or unsaturated, branched and / or unbranched alkane carboxylic acids with a chain length of 3 to 30 carbon atoms and saturated and / or unsaturated, branched and / or unbranched alcohols with a chain length from 3 to 30 carbon atoms, from the group of esters of aromatic carboxylic acids and saturated and / or unsaturated, branched and / or unbranched alcohols with a chain length of 3 to 30 carbon atoms. Such ester oils can then advantageously be selected from the group of isopropyl myristate, isopropyl palmitate, isopropyl stearate, isopropyl oleate, n-butyl stearate, n-hexyl laurate, n-decyl oleate, isooctyl stearate, isononyl stearate, isononyl isononanoate, 2-ethyllauryl, 2-ethylhexyl Hexyldecyl stearate, 2-octyldodecyl palmitate, oleyl oleate, olerlerucate, erucyl oleate, erucylerucate as well as synthetic, semi-synthetic and natural mixtures of such esters, for example Jojoba oil.

Furthermore, the oil components of the oil phase can advantageously be selected from the group of branched and unbranched hydrocarbons and waxes, the dialkyl ethers and / or dialkyl carbonates, the group of saturated or unsaturated, branched or unbranched alcohols, and also the fatty acid triglycerides, especially that Triglycerol esters of saturated and / or unsaturated, branched and / or unbranched alkane carboxylic acids with a chain length of 8 to 24, in particular 12 to 18, carbon atoms. The fatty acid triglycerides can, for example, advantageously be selected from the group of synthetic, semisynthetic and natural oils, for example olive oil, sunflower oil, soybean oil, peanut oil, rapeseed oil, almond oil, palm oil, coconut oil, palm kernel oil and the like.

Fat and / or wax components to be used advantageously according to the invention can be selected from the group of vegetable waxes, animal waxes, mineral waxes and petrochemical waxes. Favorable according to the invention are, for example, candelilla wax, camauba wax, japan wax, esparto grass wax, cork wax, guaruma wax, rice germ oil wax, sugar cane wax, berry wax, ouricury wax, montan wax, jojoba wax, shea butter, beeswax, shellac wax, walnut wax, lanolin (wool wax), Bürzelfettite, cerium wax fat, cereal wax, cereal wax fat , Paraffin waxes and micro waxes.

Further advantageous fat and / or wax components are chemically modified waxes and synthetic waxes such as those sold under the tradenames Syncrowax HRC (glyceryl tribehenate), Syncrowax HGLC (C ₁₆ _3S -Fettsäuretrigly- cerid.) And Syncrowax AW 1C (C ₁₈ _36. - Fatty acid) available from CRODA GmbH as well as montan ester waxes, Sasol waxes, hydrogenated jojoba waxes, synthetic or modified beeswaxes (e.g. dimethicone copolyol beeswax and / or C30.50-alkyl beeswax), polyalkylene waxes, polyethylene glycol waxes, but also chemically modified fats, such as B. hydrogenated vegetable oils (for example hydrogenated castor oil and / or hydrogenated coconut fat glycerides), triglycerides such as trihydroxystearin, fatty acids, fatty acid esters and glycol esters such as C ₂₀ . ₄₀ -alkyl stearate, C ₂₀ - ₄ o-alkylhydroxystearoyl stearate and / or glycol montanate. Also particularly advantageous are certain organosiiicium compounds which have similar physical properties to the fat and / or wax components mentioned, such as stearoxytrimethylsilane.

According to the invention, the fat and / or wax components can be present both individually and in a mixture. Any mixtures of such oil and wax components can also be used advantageously for the purposes of the present invention. It may also be advantageous to use waxes, for example cetyl palmitate, as the sole lipid component of the oil phase.

The oil phase is advantageously selected from the group consisting of 2-ethylhexyl isostearate, octyldodecanol, isotridecyl isononanoate, isoeicosane, 2-ethylhexyl cocoate, C ₂ -C ₅ -alkyl benzoate, caprylic capric acid triglyceride, dicaprylyl ether.

Particularly advantageous are mixtures of C ₁₂ .ιs benzoate and 2-ethylhexyl isostearate, mixtures of Cι ₂ _ι ₅ -alkyl benzoate and isotridecyl isononanoate and mixtures of Ci _Σ -is-alkyl benzoate, 2-ethylhexyl isostearate and isotridecyl isononanoate.

Of the hydrocarbons, paraffin oil, cycloparaffin, squalane, squalene, hydrogenated polyisobutene or polydecene can be used advantageously for the purposes of the present invention.

W / O emulsions according to the invention can advantageously be prepared with the aid of the usual W / O emulsifiers, if desired with the aid of O / W emulsifiers or other co-emulsifiers.

W / O emulsions according to the present invention contain one or more emulsifiers, particularly advantageously selected from the group of the following substances, which generally act as W / O emulsifiers:

Sorbitan stearate, sorbitan oleate, lecithin, glyceryl alcoholate, lanolin, microcrystalline wax (Cera microcristallina) in a mixture with paraffin oil (Paraffinum liquidum), ozokerite, hydrogenated castor oil, glyceryl isostearate, polyglyceryl-3-oleate, wool wax acid mixtures, poly wax alcohol alcoholate, wool wax alcohol alcoholate Diisostearate, sorbitan oleate in a mixture with hydrogenated castor oil, beeswax (Cera alba) and stearic acid, sodium dihydroxycetylphosphate in a mixture with isopropylhydroxycetyl ether, methylglucose dioleate, methylglucose dioleate in a mixture with hydroxystearate and ozonite petrol and mineral oil in a mixture glycerol ryloleate and lanolin alcohol, petrolatum in a mixture with ozokerite and hydrogenated castor oil and glyceryl isostearate and polyglyceryl-3-oleate, PEG-7-hydrogenated castor oil, sorbitan oleate in a mixture with PEG-2-hydrogenated castor oil, ozokerite and hydrogenated castor oil, mixed sorbitan isostearate PEG-2 hydrogenated castor oil, polyglyceryl 4-isostearate, polyglyceryl 4-isostearate in a mixture with cetyldimethicone copolyol and hexyl laurate, laurylmethicone copolyol, cetyldimethicone copolyol, acrylate / Cι ₀ . ₃ -alkyl acrylate crosspolymer, sorbitan isostearate, poloxamer 101, polyglyceryl-2-dipolyhydroxystearate, polyglyceryl-3-diisostearate, polyglyceryl-4-dipolyhydroxystearate, PEG-30-dipolyhydroxy-stearate, diisostearoylpolyglyceryl-3-di-diisostearate Polyglyceryl-3-dipolyhydroxystearate, polyglyceryl-4-dipolyhydroxystearate, polyglyceryl-3-dioleate.

W / O emulsions according to the present invention optionally contain one or more emulsifiers, particularly advantageously selected from the group of the following substances, which generally act as O / W emulsifiers:

Glyceryl stearate in a mixture with ceteareth-20, ceteareth-25, ceteareth-6 in a mixture with stearyl alcohol, cetylstearylalcohol in a mixture with PEG-40-castor oil and sodium cetylstearyl sulfate, triceteareth-4 phosphate, glyceryl stearate, sodium cetylethearate, 4-lecarboxylate, lecarbylate lecithate, lecarbate, lecyl stearate sulfate -4 phosphate, stearic acid, propylene glycol stearate SE, PEG-25 hydrogenated castor oil, PEG-54 hydrogenated castor oil, PEG-6 caprylic acid / capric acid glycerides, glyceryl oleate in a mixture with propylene glycol, PEG-9 stearate, ceteth-2, Ceteth-20, polysorbate 60, glyceryl stearate in a mixture with PEG-100 stearate, glyceryl myristate, glyceryl laurate, PEG-40 sorbitan peroleate, Laureth-4, ceteareth-3, isostearylglyceryl ether, cetylstearyl alcohol in a mixture with sodium cetyl stearyl, learyl stearyl -23, steareth-2, glyceryl stearate in a mixture with PEG-30 stearate, PEG-40 stearate, glycol distearate, PEG-22-dodecy) glycol copoly er, polyglyceryl-2-PEG-4 stearate, ceteareth-20, methyl glucose sesquistearate , Steareth-10, PEG-20 stearate, steareth-2 in admixture with PEG-8 distearate, steareth-21, steareth-20, isosteareth-20, PEG-45 / dodecylglycol copolymer, methoxy-PEG-22 / dodecylglycol copolymer, PEG -40-sorbitan per-oleate, PEG-40-sorbitan perisostearate, PEG-20-glyceryl stearate, PEG-20-glyceryl stearate, PEG-8-beeswax, polyglyceryl-2-laurate, isostearyl diglyceryl succinate, stearamido propyl stearate, SE-dimon chloride, Ceteth-20, triethyl citrate, PEG-20 methyl glucose sesquistearate, ceteareth-12, glyceryl stearate citrate, cetyl phosphate, sor- bitansesquioleate, triceteareth-4-phosphate, trilaureth-4-phosphate, polyglycerylmethylglucose distearate, potassium cetylphosphate, isosteareth-10, polyglyceryl-2-sesquiisostearate, ceteth-10, oleth-20, isocetethearate-20, glycerylstearate, glycerylstearate Ceteareth-12, cetylstearyl alcohol and cetyl palmitate, cetylstearyl alcohol in a mixture with PEG-20 stearate, PEG-30 stearate, PEG-40 stearate, PEG-100 stearate.

It was particularly surprising that cosmetic or dermatological W / O emulsions according to the invention, which are distinguished by a content of silicone emulsifiers, have very particularly advantageous properties. Such W / O emulsions are therefore particularly preferred embodiments of the present invention.

According to the invention, the silicone emulsifiers can advantageously be selected from the group of surface-active substances from the group of alkyl methicon copolyols and / or alkyl dimethicone copolyols, in particular from the group of compounds which are characterized by the following chemical structure:

CH ₃ CH ₃ CH ₃ CH ₃ CH ₃ IIIIIB _* C - SI-O - Si - -o-si - -O-Si - -O - Si - CH ₃

I I

CH, CH- Y CH ₃

CH,

C ₂ H ₄ - O - C ₃ H ₆ 0 - X

in which X and Y are selected independently of one another from the group H and the branched and unbranched alkyl groups, acyl groups and alkoxy groups having 1 to 24 carbon atoms, p represents a number from 0 to 200, q represents a number from 1 to 40, and r represents a number Represents number from 1 - 100.

An example of surface-active substances to be used particularly advantageously for the purposes of the present invention is the cetyl dimethicone copolyol, which is sold by the company Th. Goldschmidt AG under the trade name ABIL® EM 90. Another example of surface-active substances to be used particularly advantageously for the purposes of the present invention is the cyclomethicone dimethicone copolyol, which is sold by the company Th. Goldschmidt AG under the trade name ABIL® EM 97.

Furthermore, the emulsifier lauryl methicone copolyol, which is sold under the trademark Dow Corning® 5200 Formulation Aid by the company Dow Corning Ltd., has proven to be particularly advantageous. is available.

The total amount of silicone emulsifiers used according to the invention in the cosmetic or dermatological preparations according to the invention is advantageously chosen from the range from 0.1 to 10.0% by weight, preferably 0.5 to 5.0% by weight, based on the total weight of the preparations.

Emulsions according to the invention in the sense of the present invention, e.g. in the form of a skin protection cream, a skin lotion, a cosmetic milk, for example in the form of a sun protection cream or a sun protection milk, are advantageous and contain e.g. Fats, oils, waxes and / or other fat bodies, as well as water and one or more emulsifiers, as are usually used for such a type of formulation.

It is of course known to the person skilled in the art that sophisticated cosmetic compositions are usually inconceivable without the customary auxiliaries and additives. These include, for example, consistency agents, fillers, perfumes, dyes, emulsifiers, additional active ingredients such as vitamins or proteins, light stabilizers, stabilizers, insect repellents, alcohol, water, salts, antimicrobial, proteolytic or keratolytically active substances, etc.

Mutatis mutandis, corresponding requirements apply to the formulation of medical preparations.

Medical topical compositions in the sense of the present invention generally contain one or more drugs in effective concentration. For the sake of simplicity, the clean distinction between cosmetic and medical application and corresponding products refer to the legal provisions of the Federal Republic of Germany (e.g. cosmetics regulation, food and drug law).

Accordingly, cosmetic or topical dermatological compositions in the sense of the present invention, depending on their structure, can be used, for example, as skin protection cream, cleansing milk, sunscreen lotion, nutritional cream, day or night cream, etc. It may be possible and advantageous to use the compositions according to the invention as the basis for pharmaceuticals Use wording.

It is also advantageous to make use of the properties according to the invention in the form of decorative cosmetics (make-up formulations).

Cosmetic and dermatological preparations which are in the form of a sunscreen are also favorable. In addition to the active ingredient used according to the invention, these preferably additionally contain at least one UVA filter substance and / or at least one UVB filter substance and / or at least one inorganic pigment.

However, it is also advantageous in the sense of the present inventions to create cosmetic and dermatological preparations whose main purpose is not protection against sunlight, but which nevertheless contain UV protection substances. For example, UV-A or UV-B filter substances are usually incorporated into day creams.

Preparations according to the invention can advantageously contain substances which absorb UV radiation in the UVB range, the total amount of filter substances e.g. 0.1% by weight to 30% by weight, preferably 0.5 to 10% by weight, in particular 1 to 6% by weight, based on the total weight of the preparations.

The UVB filters can be oil-soluble or water-soluble. As oil-soluble substances e.g. to call:

3-benzylidene camphor and its derivatives, for example 3- (4-methylbenzylidene) camphor, 4-aminobenzoic acid derivatives, preferably 4- (dimethylamino) benzoic acid (2-ethylhexyl) ester, 4- (dimethylamino) benzoic acid amyl ester;

Esters of cinnamic acid, preferably 4-methoxycinnamic acid (2-ethyl! Hexyl) ester, 4-methoxycinnamic acid isopentyl ester;

Esters of salicylic acid, preferably salicylic acid (2-ethylhexyl) ester, salicylic acid

(4-isopropylbenzyl) ester, salicylic acid homomethyl ester;

Derivatives of benzophenone, preferably 2-hydroxy-4-methoxybenzophenone, 2-

Hydroxy-4-methoxy-4'-methylbenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone;

Esters of benzalmalonic acid, preferably 4-methoxybenzalmalonic acid di (2-ethylhexyl) ester;

2,4,6-trianilino- (p-carbo-2'-ethyl-1'-hexyloxy) -1, 3,5-triazine

The following are advantageous as water-soluble substances:

2-phenylbenzimidazole-5-sulfonic acid and its salts, e.g. Sodium, potassium or

Triethanolammonium salts,

Suifonic acid derivatives of benzophenones, preferably 2-hydroxy-4-methoxy-benzophenone-5-sulfonic acid and their salts;

Suifonic acid derivatives of 3-benzylidene camphor, e.g. 4- (2-oxo-3-bornylidene-methyl) benzenesulfonic acid, 2-methyl-5- (2-oxo-3-bornylidene-methyl) sulfonic acid and their salts.

The list of UVB filters mentioned, which can be used according to the invention, is of course not intended to be limiting.

It can also be advantageous to use UVA filters in the preparations according to the invention, which are usually contained in cosmetic and / or dermatological preparations. Such filter substances are preferably derivatives of dibenzoylmethane, in particular 1- (4'-tert-butylphenyl) -3- (4'-methoxyphenyl) propane-1,3-dione and 1-phenyl-3- ( 4'-isopropylphenyl) propane-1,3-dione. Preparations containing these combinations are also the subject of the invention. The same amounts of UVA filter substances that were mentioned for UVB filter substances can be used. Cosmetic and / or dermatological preparations in the sense of the present invention can also contain inorganic pigments which are usually used in cosmetics to protect the skin from UV rays. These are oxides of titanium, zinc, iron, zirconium, silicon, manganese, aluminum, cerium and mixtures thereof, as well as modifications in which the oxides are the active agents. It is particularly preferred to use pigments based on titanium dioxide. The amounts given for the above combinations can be used.

The cosmetic and dermatological preparations according to the invention can contain cosmetic active ingredients, auxiliaries and / or additives as are usually used in such preparations, e.g. Antioxidants, preservatives, bactericides, perfumes, anti-foaming substances, dyes, pigments that have a coloring effect, thickeners, surface-active substances, emulsifiers, softening, moisturizing and / or moisturizing substances, fats, oils, waxes or other common components of a cosmetic or dermatological formulation such as alcohols, polyols, polymers, foam stabilizers, organic solvents or silicone derivatives.

It is advantageous if the W / O emulsions according to the invention are distinguished by a proportion of electrolytes. According to the invention, the electrolyte or electrolytes are advantageously selected from the group

(1) of the salts with the following anions: chlorides, furthermore inorganic oxo element anions, of these in particular sulfates, carbonates, phosphates, borates and aluminumates. Electrolytes based on organic anions are also advantageous, e.g. Lactates, acetates, benzoates, propionates, tartrates, citrates, amino acids and their salts and others. Comparable effects can also be achieved with ethylenediamine tetraacetic acid and its salts.

Ammonium, alkylammonium, alkali metal, alkaline earth metal, magnesium, iron and zinc ions are preferably used as cations of the salts. There is no need to mention that only physiologically acceptable electrolytes should be used in cosmetics. Potassium chloride, sodium chloride, magnesium sulfate, zinc sulfate and mixtures thereof are particularly preferred. According to the invention, the electrolyte or electrolytes are also advantageously selected from the

group

(2) Certain water-soluble UV filter substances, mostly in the form of alkali salts, in particular those which carry one or more sulfonic acid groups or sulfonate groups on their molecular structure:

The 2-phenylbenzimidazole-5-sulfonic acid and its salts, for example the sodium, potassium or its triethanolammonium salt

Suifonic acid derivatives of benzophenones, preferably 2-hydroxy-4-methoxy-benzophenone-5-sulfonic acid and their salts, for example the corresponding sodium, potassium or triethanolammonium salt:

Suifonic acid derivatives of 3-benzylidene camphor, e.g. 4- (2-oxo-3-bornylidene-methyl) benzenesulfonic acid and its salts, for example the corresponding sodium, potassium or triethanolammonium salt:

The 2-methyl-5- (2-oxo-3-bomylidenemethyl) benzenesulfonic acid and its salts, for example the corresponding sodium, potassium or triethanolammonium salt:

The 1, 4-di (2-oxo-10-sulfo-3-bornylidenemethyl) benzene and its salts (the resulting 10-sulfato compounds, for example the corresponding sodium, potassium or triethanolammonium salt), too referred to as benzene-1,4-di (2-oxo-3-bomylidemethyl-10-sulfonic acid):

According to the invention, the electrolyte or electrolytes are furthermore advantageously selected from the

group

(3) the amino acids and their salts or their anions. Amino acids are part of the natural moisture factor (the so-called natural moisturizing factor). The addition of amino acids, especially essential amino acids, is to be regarded as advantageous, since moisture can be bound in the skin through hydration processes.

Amino acids with a particularly advantageous cosmetic or dermatological effect are glycine, alanine, valine, leucine, isoleucine, phenylalanine, tyrosine, proline, hydroxyproline, serine, threonine, cysteine, methionine, tryptophan, arginine.

According to the invention, the electrolyte or electrolytes are further advantageously selected from the group (4) the cosmetically and dermatologically relevant .alpha.-hydroxycarboxylic acids, .alpha.-ketocarboxylic acids and .beta.-hydroxycarboxylic acids and in particular their salts, the cations advantageously being able to be selected from the group consisting of ammonium, - alkylammonium, - alkali metal, alkaline earth metal, - magnesium - , Iron or zinc ions.

α-Hydroxycarboxylic acids, ¹ which are cosmetically or dermatologically relevant, follow the general formula

ß-Hydroxycarboxylic acids, which are cosmetically or dermatologically relevant, follow the general formula

R "R"

I I

R'— CH-CH-COOH R'— C— C— COOH

OH. OH or α-ketocarboxylic acids, which are cosmetically or dermatologically relevant, follow the general formula

O

R'— C— COOH where each R 'and R "are independently selected from the group

(a1) H-,

(a2) branched or unbranched Cι. ₂₅ alkyl,

(a3) branched or unbranched C 1 -C 4 -alkyl substituted with one or more carboxyl groups and / or hydroxyl groups and / or aldehyde groups and / or oxo groups (keto groups)

(a4) phenyl,

(a5) with one or more carboxyl groups and / or hydroxyl groups and / or branched and / or unbranched Cι. ₂₅ -alkyl groups substituted phenyl, or wherein the α-carbon atom and the ß-carbon atom of the ß-hydroxycarboxylic acid with R 'and R "together a (a6) unsubstituted cycloalkyl group or aryl group with 3 to 7 ring atoms or one

(a7) with one or more carboxyl groups and / or hydroxyl groups and / or oxo groups (keto groups) and / or branched and / or unbranched C 1 -C 6 -alkyl groups, substituted cycloalkyl group or aryl group with 3 to 7 ring atoms and wherein the α-hydroxycarboxylic acids or the β-hydroxycarboxylic acids or the α-ketocarboxylic acids can optionally be present in the form of their physiologically tolerable salts.

The following are advantageous α-hydroxycarboxylic acids, β-hydroxycarboxylic acids and α-ketocarboxylic acids to be used in the context of the present invention, these also being listed as representative of their salts or anions:

The salicylic acid (also 2-hydroxybenzoic acid, spiric acid), which by the structure

is marked. As is known, salicylic acid has an antibacterial and keratolytic effect and is a component of some cosmetic or pharmaceutical preparations.

The α-hydroxycarboxylic acids used according to the invention are advantageously chosen from the following classes of substances:

(a2) α-hydroxy fatty acids, which in turn are selected particularly advantageously from the group of Cιo- ₁ 8-alkyl carboxylic acids, (a3) α-hydroxy sugar acids, aliphatic α-hydroxy fruit acids, (a4) unsubstituted aromatic α-hydroxy carboxylic acids (e.g. mandelic acid) or (a5) Substituted aromatic α-hydroxycarboxylic acids. The α-hydroxy fatty acids falling under point (a2) are particularly advantageously selected from the group α-hydroxycarboxylic acids, according to the formula

α-Hydroxy-isocarboxylic acids, according to the formula

α-Hydroxy-anteisocarboxylic acids, according to the formula

where n represents a number from 7 to 31.

It is furthermore advantageous to use mixtures of such aliphatic α-hydroxycarboxylic acids, in particular in the form of wool wax acid mixtures, in which the content of α-hydroxycarboxylic acids is 20-30% by weight, based on the total composition.

The α-hydroxy sugar acids falling under point (a3) are particularly advantageously selected from the group of

Aldonic acids, e.g. Gluconic acid, galactonic acid

Aldar acids, for example glucaric acid, galactaric acid (but also the fruit acid tartaric acid, which also falls under the definition of aldar acid), uronic acids, for example glucuronic acid, galacturonic acid, glyceric acid The aliphatic α-hydroxy fruit acids falling under point (a3) are particularly advantageously selected from the group of malic acid, lactic acid, citric acid, tartaric acid.

Malic acid (hydroxy succinic acid) is characterized by the following chemical structure:

HOOC- CH ₂ -CH- COOH I OH

Lactic acid (2-hydroxypropanoic acid) is characterized by the following chemical structure:

CH ₃ -CH- COOH OH

Citric acid (2-hydroxy-1,2,3-propanetricarboxylic acid) is characterized by the following chemical structure:

As is known, citric acid is used for buffering cosmetic and / or dermatological preparations, but also as a synergist for antioxidants in skin and hair cosmetics.

Tartaric acid (dihydroxy succinic acid) is characterized by the following chemical structure:

HOOC - CH - CH - COOH I I OH OH

The preferred α-ketocarboxylic acid is pyruvic acid (α-oxopropanoic acid). It is characterized by the following structure:

The maximum amount of the electrolytes to be used ultimately depends on their solubility in the aqueous phase. Basically, the teaching of the invention but no maximum quantities as a barrier, since it may even be advantageous, for whatever reason, to incorporate an additional amount of this electrolyte beyond the solubility of an electrolyte, for example as an undissolved solid, into a cosmetic or dermatological preparation.

It is also advantageous to add further anti-irritant or anti-inflammatory agents to the preparations in the context of the present invention, in particular batyl alcohol (α-octadecylglyceryl ether), selachyl alcohol (α-9-octadecenylglyceryl ether), chimyl alcohol (α-hexadecylglyceryl ether), bisabolol and / or panthenol.

It is also advantageous to add customary antioxidants to the preparations for the purposes of the present invention. According to the invention, all the antioxidants suitable or customary for cosmetic and / or dermatological applications can be used as favorable antioxidants.

The antioxidants are advantageously selected from the group consisting of amino acids (eg glycine, histidine, tyrosine, tryptophan) and their derivatives, imidazoles (eg urocanic acid) and their derivatives, peptides such as D, L-camosine, D-carnosine, L- Carnosine and its derivatives (e.g. anserine), carotenoids, carotenes (e.g. α-carotene, ß-carotene, ψ-lycopene) and their derivatives, chlorogenic acid and their derivatives, lipoic acid and their derivatives (e.g. dihydroliponic acid), aurothioglucose, propylthiouracil and other thi - Oles (e.g. thioredoxin, glutathione, cysteine, cystine, cystamine and their glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, γ -Linoleyl, cholesteryl and glyceryl esters) as well as their salts, dilauryl thiodipropionate, distearyl thio dipropionate, thiodipropionic acid and their derivatives (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts) as well as sutfoximine compounds (e.g. buthionine-sulfoximine, homocysteine sulfonate, homocysteine sulfonate, homocysteine sulfonate, homocysteine sulfone Pen ta-, hexa-, heptathioninsulfoximine) in very low tolerable doses (e.g. pmol to μmol / kg), also (metal) chelators (e.g. α-hydroxy fatty acids, palmitic acid, phytic acid, lactoferrin), α-hydroxy acids (e.g. citric acid, Lactic acid, malic acid), humic acid, bile acid, bile extracts, bilirubin, biliverdin, EDTA, EGTA and their derivatives, unsaturated fatty acids and their derivatives (e.g. γ-linolenic acid, linoleic acid, oleic acid), folic acid and their derivatives, furfurylidene sorbitol and its derivatives, Ubiquinone and Ubi- quinol and its derivatives, vitamin C and derivatives (e.g. ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate), tocopherols and derivatives (e.g. vitamin E acetate), vitamin A and derivatives (vitamin A palmitate) and coniferyl benzoate of the benzoin resin, Rutinic acid and its derivatives, α-glycosylrutin, ferulic acid, furfurylidene glucitol, carnosine, butylhydroxytoluene, butylhydroxyanisole, nordihydroguajakharzäure, nordihydroguajaretic acid, trihydroxybutyrophenone, uric acid and its derivatives, eg zinc and its derivatives, mannose and its derivatives, mannose and ZnO2 and its derivatives, mannose and its derivatives, eg ₄ ) Selenium and its derivatives (eg selenium methionine), stilbenes and their derivatives (eg stilbene oxide, trans-stilbene oxide) and the derivatives suitable according to the invention (salts, esters, ethers, sugars, nucleotides, nucleosides, peptides and lipids) of these active substances.

The amount of the antioxidants (one or more compounds) in the preparations is preferably 0.001 to 30% by weight, particularly preferably 0.05 to 20% by weight, in particular 1 to 10% by weight, based on the total weight of the preparation ,

If vitamin E and / or its derivatives represent the antioxidant (s), it is advantageous to choose their respective concentrations from the range of 0.001-10% by weight, based on the total weight of the formulation.

Preparations according to the present invention can also be used as a basis for cosmetic or dermatological deodorants or antiperspirants. All active ingredients common to deodorants or antiperspirants can be used advantageously, for example odor maskers such as the common perfume components, odor absorbers, for example the layered silicates described in patent application DE-P 40 09 347, of which in particular montmorillonite, kaolinite, llite, beidellite, nontronite , Saponite, hectorite, bentonite, smectite, furthermore, for example, zinc salts of ricinoleic acid.

Germ-inhibiting agents are also suitable for being incorporated into the preparations according to the invention. Examples of advantageous substances are 2,4,4'-trichloro-2'-hydroxydiphenyl ether (irgasane), 1,6-di (4-chlorophenylbiguanido) hexane (chlorhexidine), 3,4,4'-trichlorocarbanilide, quaternary ammonium compounds , Clove oil, mint oil, thyme oil, triethyl citrate, farnesol (3,7,11-trimethyl-2,6,10-dodecatrien-1-ol) and those in the Patent publications DE-37 40 186, DE-39 38 140, DE-42 04 321, DE-42 29 707, DE-43 09 372, DE-44 11 664, DE-195 41 967, DE-195 43 695, DE -195 43 696, DE-195 47 160, DE-196 02 108, DE-196 02 110, DE-196 02 111, DE-196 31 003, DE-196 31 004 and DE-196 34 019 and the patents DE -42 29 737, DE-42 37 081, DE-43 24 219, DE-44 29 467, DE-44 23 410 and DE-195 16 705 described active ingredients or combinations of active ingredients. Sodium hydrogen carbonate can also be used advantageously.

The amount of such active substances (one or more compounds) in the preparations according to the invention is preferably 0.001 to 30% by weight, particularly preferably 0.05-20% by weight, in particular 1-10% by weight, based on the Total weight of the preparation.

The water phase of the cosmetic preparations in the sense of the present invention can also have a gel character which, in addition to an effective content of the substances used according to the invention and solvents usually used for this purpose, preferably water, also further organic thickeners, e.g. Gum arabic, xanthan gum, sodium alginate, starch and starch derivatives (e.g. distarch phosphate), cellulose, cellulose derivatives, preferably methyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose or inorganic thickeners, e.g. B. aluminum silicates such as organically modified or unmodified hectorite, bentonite, or the like, or a mixture of polyethylene glycol and polyethylene glycol stearate or distearate. The thickener is in the gel e.g. in an amount between 0.1 and 30% by weight, preferably between 0.5 and 15% by weight.

The preparations according to the invention particularly advantageously contain glycerol. The total amount of glycerol in the cosmetic or dermatological preparations according to the invention is advantageously in the range of 0.01-30.0% by weight, preferably 0.1-10.0% by weight, particularly preferably 0.5-5%. 0% by weight, based on the total weight of the preparations. It may also be advantageous to add surface-active or surface-active agents to preparations according to the invention, for example cationic emulsifiers such as, in particular, quaternary surfactants.

Quaternary surfactants contain at least one N atom that is covalently linked to 4 alkyl or aryl groups. Regardless of the pH value, this leads to a positive charge. Alkyl betaine, alkyl amidopropyl betaine and aikyl amidopropyl hydroxysulfain are advantageous. The cationic surfactants used according to the invention can furthermore preferably be selected from the group of quaternary ammonium compounds, in particular benzyltrialkylammonium chlorides or bromides, such as, for example, benzyldimethylstearylammonium chloride, furthermore alkyltrialkylammonium salts, for example, for example cetyltrimethylammonium chloride or bromide, alkyl or dimethylammonium bromide, xy or dimethylammonium bromide, xdimethylammonium bromide, xy or dimethylammonium bromide, xy or dimethylammonium bromide, x or methyldimethyl bromide bromide, or xdimethyl bromide bromide , Alkylamidethyltrimethylammonium ether sulfates, alkylpyridinium salts, for example lauryl or cetylpyrimidinium chloride, imidazoline derivatives and compounds with a cationic character such as amine oxides, for example alkyldimethylamine oxides or alkyiaminoethyldimethylamine oxides. Cetyltrimethylammonium salts are particularly advantageous.

It is also advantageous to use cationic polymers (for example Jaguar C 162 [hydroxypropyl guar hydroxypropyltrimonium chloride) or modified magnesium aluminum silicates (for example quatemium-18-hectorite, which is available, for example, under the trade name Bentone® 38 from Rheox, or Stearalkonium hectorite, which is available, for example, under the trade name Softisan® Gel from Hüls AG).

Preparations according to the invention can advantageously also contain oil thickeners in order to improve the tactile properties of the emulsion and the stick consistency. Advantageous oil thickeners for the purposes of the present invention are, for example, other solids, such as, for. B. hydrophobic silicon oxides of the type Aerosil®, which are available from Degussa AG. Examples of advantageous Aerosil® grades are Aerosil® OX50, Aerosil® 130, Aerosil® 150, Aerosil® 200, Aerosil® 300, Aerosil® 380, Aerosil® MOX 80, Aerosil® MOX 170, Aerosil® COK 84, Aerosil® R 202 , Aerosil® R 805, Aerosil® R 812, Aerosil® R 972, Aerosil® R 974 and / or Aerosil® R976. Furthermore, so-called metal soaps (ie the salts of higher fatty acids with the exception of the alkali salts) are also advantageous oil thickeners for the purposes of the present invention, such as, for example, aluminum stearate, zinc stearate and / or magnesium stearate.

It is also advantageous to add amphoteric or zwitterionic surfactants (e.g. cocoamidopropylbetaine) and moisturizem (e.g. betaine) to preparations according to the invention. Amphoteric surfactants to be used advantageously are, for example, acyl / dialkylethylenediamine, for example sodium acylamphoacetate, disodium acylamphodipropionate, disodium alkylamphodiacetate, sodium acylamphohydroxypropylsulfonate, disodium acyiamphodiacetate and sodium acylamphopropyl aminodimide, naphthamino aminopropyl amide, amine, for example sodium aminopropyl aminopropyl amide, naphtha aminopropyl aminophenyl amide,

The amount of surface-active or surface-active substances (one or more compounds) in the preparations according to the invention is preferably 0.001 to 30% by weight, particularly preferably 0.05-20% by weight, in particular 1-10% by weight. %, based on the total weight of the preparation.

Preparations according to the invention can also contain active substances (one or more compounds) which are selected from the group: acetylsalicylic acid, atropine, azulene, hydrocortisone and its derivatives, for example hydrocortisone 17-valerate, vitamins, for example ascorbic acid and its derivatives, vitamins of B- and D series, very cheap the vitamin Bi, the vitamin B _12, the vitamin Di, but also bisabolol, unsaturated fatty acids, namely the essential fatty acids (often also called vitamin F), especially γ-linolenic acid, oleic acid, eicosapentaenoic acid, docosahexaenoic acid and their derivatives, chloramphenicol, caffeine, prostaglandins, thymol, camphor, extracts or other products of plant and animal origin, for example evening primrose oil, borage oil or currant seed oil, fish oils, cod liver oil but also ceramides and ceramide-like compounds and so on. It is also advantageous to choose the active substances from the group of refatting substances, for example Purcellin oil, Eucerit® and Neocerit®. The amount of such active substances (one or more compounds) in the preparations according to the invention is preferably 0.001 to 30% by weight, particularly preferably 0.05-20% by weight, in particular 1-10% by weight, based on the Total weight of the preparation.

The following examples are intended to illustrate the present invention.

Examples:

Claims

claims:

1. Cosmetic or dermatological preparations, which

(a) represent water-in-oil emulsions which

(b) have a talc content

2. Preparations according to claim 1, characterized in that the talcum content is 0.1-20% by weight, preferably 0.5-5% by weight, based on the total weight of the preparations.

3. Preparations according to claim 1, characterized in that they have a glycerol content.

4. Preparations according to claim 3, characterized in that the total amount of glycerol in the range 0.01-30.0 wt .-%, preferably 0.1 - 20.0 wt .-%, particularly preferably 0.5 - 15.0% by weight is selected, based on the total weight of the preparations.