Manufacturing process for a cosmetic composition enabling the production of a self-gelling beauty mask with a creamy texture.

Abstract

A cosmetic composition for creating a self-gelling beauty mask with a creamy texture. The composition is prepared by mixing an emulsion with a powder. The aqueous phase of the emulsion contains soluble alginate salts of low molecular weight, and the oily phase has a composition that allows for the desired texture. The powder contains the salts necessary to control the gelation kinetics of the alginate salts in the emulsion, as well as a filler and a gelling agent compatible with obtaining a creamy texture. The resulting cosmetic composition is prepared before use using two distinct methods: either by mechanical mixing in an open container or by vigorous shaking in a closed container.

Description

Title of the invention: Method for manufacturing a cosmetic composition allowing the production of a self-gelling beauty mask with a creamy texture. Technical field

[0001] The invention relates to a method for manufacturing a cosmetic composition for a beauty mask with a creamy texture implemented by mixing an emulsion with a powder, the aqueous phase of the emulsion comprising soluble alginate salts and its oily phase allowing a creamy texture to be obtained, the powder comprising the salts necessary for controlling the gelling kinetics of the alginate salts contained in the emulsion. Prior art

[0002] Products such as beauty masks are well known to those skilled in the art in the cosmetic field and come in the form of a gel, emulsion or paste. In particular, there are gellable beauty masks that can be removed by hand almost in one piece, commonly called "peel-off". Among these, masks based on a soluble alginate salt (sodium alginate) include in particular a source of poorly soluble calcium such as calcium sulfate, a sequestering agent such as tetrasodium pyrophosphate and a pH control agent such as magnesium oxide (Alginates, how to gel them? Kelco International Ltd, London, 1989, Entire document).

[0003] This document also reports the use of alternatives, such as the use of dicalcium phosphate as a source of calcium and mentions as sequestering agents sodium hexametaphosphate, disodium phosphate, trisodium citrate or gluconodeltalactone. The powder constituting these masks is mixed with an aqueous phase by the user using specific equipment, thus forming a paste that can be applied evenly to the skin. After application, the paste gels, forming a film that can be removed by peeling and almost in one piece.

[0004] According to the prior art (ARCHIEN, C. Impression materials: Experimental development of a test bench. Study of the phenomenon of syneresis of reversible hydrocolloids. Thesis in odontology, Academy of Nancy-Metz, University of Nancy I, 1992, p. 41-42) the gelation of the powder occurs when the sodium alginate comes into contact with calcium ions. This reaction is only possible if the sodium alginate is solubilized beforehand, before the free calcium ions are present in the medium. Thus, a moderately soluble calcium salt will be used in the presence of a very effective sequestrant, such as tetrasodium pyrophosphate. The first calcium ions are thus sequestered by the latter until its quantitative consumption, then the remaining ions will react with the sodium alginate.

[0005] Patent application EP0045493 A2 (SYNTEX (USA) INC) February 10, 1982, claim 1, paragraphs

[0010] to

[0028] discloses a cosmetic composition capable of forming a gel when mixed with water and adapted to be used as a facial mask which gels rapidly. Furthermore, the final gel is sufficiently smooth and flexible so as not to adhere to the skin and not to prevent removal of the mask. The cosmetic composition is essentially composed of a water-soluble material, sodium alginate, a soluble polymer, a salt of divalent metal ions, a phosphate retardant and an anionic surfactant.

[0006] A sales brochure from the company FMC BIOPOLYMER (A world of possibilities lies just below the surface - Alginates, 2007, pages 6 to 12) includes many of the above elements, also detailing the compositions and properties of different types of alginates depending on the type of algae used (different proportions of mannuronic and guluronic acids) as well as the sensitivity of alginates to heat and hydrolysis, which reduces their storage stability. This document also mentions the use of other soluble alginates, such as magnesium or ammonium alginates.

[0007] Many companies market so-called “peel-off” cosmetic compositions based on this principle of gelling alginates; in addition to the applicant company, we can cite ZHERMACK, NUWEN, CIMAPREM, SECMA, CAPSUM, AGRIMER or STRAND COSMETICS EUROPE.

[0008] Patent WO2004 / 026277 A1 (LES COLORANTS WACKHERR & al.) April 1, 2004, presents a method for preparing a cosmetic composition in which the preparation is only carried out at the time when the composition is used. The latter comprises a liquid phase, a powder containing a gelling agent for the liquid phase and an active cosmetic ingredient. These elements are brought into contact by the addition of the liquid phase to the powder by subjecting them to mechanical stresses which will release the liquid phase. When the liquid phase is aqueous in nature, the gelling agent can in particular be chosen from compounds of semi-synthetic origin such as modified celluloses or modified starches. Preferably, the patent gives as gelling agent a starch generally crosslinked and modified by carboxymethyl groups, marketed by the company Les Colorants Wackherr under the name "Covagel" (registered trademark).However, the invention does not mention the use of a modified starch for a cosmetic composition of a self-beauty mask. removable gelling agent from a part, nor from a process for implementation in a closed container.

[0009] Finally, the applicant company markets beauty masks known as “Shakers peel-off” allowing the production of gellable and peelable beauty masks, the composition of which simultaneously uses the aforementioned gelling process based on sodium alginate, calcium salts as well as other salts and the carboxymethyl starch derivative marketed by the company Les Colorants Wackherr mentioned above, which allows the implementation of the products by simple manual stirring of the mixture of powder with water in a closed container of the “Shaker” type.

[0010] Among the so-called "peel-off" cosmetic compositions, some are presented in kits comprising two gelled phases to be mixed just before use; in particular, the companies SCIENCES ET MER and CIMAPREM have already presented such inventions between 2011 and 2015, marketed under the names "Mix 2 Gel", "Mix 2 Masque", "Two gel mix" or "Peel-off gel", (Cimaprem Alginates Peel-off gel -Mix two gel and choose your success. Cosmetic Technology, May-June 2012 - 15(3), page 57). These products consist on the one hand of a compartment containing an aqueous phase comprising sodium alginate and a complexing agent for a cation of the alginate (generally tetrasodium pyrophosphate), on the other hand of a second compartment containing a gel comprising a source of calcium and other ingredients, such as adjuvants or cosmetic active ingredients.However, after mixing the two compartments just before use, the final texture of the product remains not very creamy and does not differ from the "peel-off" masks already existing in powder form to be implemented after hydration. The advantage presented by these inventions is therefore limited to the convenience of use, which dispenses with the tedious implementation of a powder to be mixed with water, but does not allow to obtain for the final product textures different from those of the already existing products.

[0011] Thus, the aforementioned products have textures usually encountered for so-called “peel-off” masks already marketed in the form of powder to be used after hydration, these remaining not very creamy. The advantage presented by these inventions is therefore limited to the convenience of use, which dispenses with the tedious use of a powder to be mixed with water, but does not make it possible to obtain for the final product textures different from those of the already existing products.

[0012] Furthermore, patent KR20110078532 (COREANA COSMETICS CO LTD) July 7, 2011, abbreviated, claims 1 to 5, describes a “peel-off” mask in a kit of two phases (A) and (B) of which (A) is composed, this time, of a solution containing 0.1 to 6% of sodium alginate and 0.01 to 1% of tetrasodium pyrophosphate and (B), a solution containing 4 to 10% of calcium sulfate as well as 0.3 to 3% of resin containing xanthan gum, neither of the two phases being an emulsion.

[0013] Similarly, patent FR2782923 (THOREL JEAN NOËL) March 10, 2000, abbreviated, claims 1 to 11, describes a process for producing a cosmetic composition in a kit in the form of a film or mask, including two phases (A) and (B) of which (A) is composed of an emulsion or a gel of pH 5 to 9, comprising at least one alginate salt (preferably sodium alginate) between 0.5 and 4% and which may also contain a calcium ion sequestering agent such as tetrasodium pyrophosphate, one or more other gelling agents such as xanthan gum or carob gum, between 0.05 and 1%, and (B), an aqueous solution, preferably sprayable, containing a calcium salt to be chosen from calcium sulfate and chloride between 1 and 10%.

[0014] To our knowledge, there is therefore no publication which describes a peel-off cosmetic composition of the "peel-off" type in a kit including a mixture of two phases, one of which is an emulsion comprising a soluble alginate salt and the other phase a powder consisting of a powder comprising agents allowing the controlled gelling of this alginate salt.

[0015] Furthermore, it is known to the applicant company that the company AGRIMER markets products called "oily peel-off" but these are characterized in the commercial documents of said company as being in the form of an already homogeneous pasty gel to be diluted in water. Even if this product is in the form of a peelable, gellable mask which can be removed from a part in 15 minutes, its design differs from the present invention in that the product is in the form of an oily gel to be diluted with water, and not a kit consisting of a powder to be mixed with an emulsion, which implies in particular a texture different from that of the present invention.

[0016] The use of emulsions is well known to those skilled in the art in the cosmetic field, both in the form of fluid emulsions such as milks or creams, serums, or in the form of oil-in-water or water-in-oil emulsions (AM PENSE-LHERITIER Conception des produits cosmétiques : la formulation. France, Ed. Lavoisier. 2014, p. 164-220). More specifically concerning beauty masks, many marketed products are in the form of creams, but are not gellable to the point of constituting a material sufficiently cohesive and flexible to be peelable, which requires a tedious phase of cleansing the user's face after use.

[0017] Similarly, the various emulsifiers cited in the present invention are known to those skilled in the art for their properties in the formulation of numerous cosmetic products, but no specific use in the context of the formulation of peel-off type masks is known to the applicant company. Thus, to the best of its knowledge, there is no publication reporting the implementation of gellable and peelable beauty masks known as "peel-off" whose implementation uses an emulsion, and having the following characteristics: 1. Usable in the form of two phases to be mixed before use, one of the phases consisting of a stable emulsion with a high content of a soluble alginate salt, and the other of a powder. 2. Allowing, after mixing the two phases, to produce a product which simultaneously exhibits gelling, resulting in a product which can be peeled off in one piece after a few minutes of application and a creamy texture when applied. Description of the invention

[0018] The present invention also aimed to remedy two drawbacks of “peel-off” masks frequently mentioned by their users, namely the fact that they leave white marks on their skin as well as a feeling of tightness of the skin due to the presence of mineral fillers in the matrices of these products, such as kaolin or diatomaceous earth.

[0019] The design of such a product encountered many obstacles, including: 1. Recrystallization phenomena of the phosphate salt (allowing control of the gelling kinetics) in the gelled aqueous phase containing both the sodium alginate and the emulsion, hereinafter referred to as phase A. Several attempts proved unsuccessful, for example when attempting to modify the pH of this phase, which resulted in a degradation of its physical properties, in particular a reduction in its mechanical strength after gelling and in its viscosity leading to flow of the mask when it was applied. Ultimately, it proved necessary to incorporate the phosphate salt into the second phase, the powder hereinafter referred to as phase B. 2. Destabilization phenomena of alginate molecules in the emulsion phase, hereinafter referred to as phase A. Indeed, it is known to those skilled in the art that alginate molecules with high molecular weight and high viscosity tend to depolymerize in solution. This depolymerization directly impacts the mechanical properties of the gels formed and, in the case of “peel-off” masks, an increase in the fluidity of the reconstituted mask as well as a weakness to mechanical stresses. In order to limit these effects, it is possible to use low molecular weight alginates, which have a lower viscosity in solution than higher molecular weight alginates, but a lesser tendency to depolymerize, which limits the degradation of quality gelling of masks over time, particularly when products undergo prolonged storage periods at high ambient temperatures.

[0020] To combat this phenomenon, it has therefore proved necessary to avoid the use of high molecular weight alginate grades, by simultaneously using low molecular weight alginate grades and adding a co-gelling agent to them, this making it possible to simultaneously preserve a stable gelling quality over time, and a viscosity high enough to avoid the mask running during its application.

[0021] It is known to those skilled in the art that alginate grades are compared with each other in order to establish an empirical ranking from the highest molecular weight to the lowest molecular weight, the molecular mass of an alginate salt soluble under given conditions being correlated with its viscosity in solution under given conditions. These comparisons are carried out by measuring the viscosity in 1% solution with a Brookfield viscometer. Thus, soluble alginate salts having a viscosity at 1% in water, measured at 20°C and at pH 7, of less than 200 mPa.s, are less sensitive to the phenomena of depolymerization and consequently of a decrease in their viscosity and loss of gel strength during their aging, but on the other hand have a low viscosity which must be compensated for by increasing the concentration of said alginate and the addition of a co-gelling agent.In order to limit the viscosity of phase A already increased by the presence of alginate, this co-gelling agent will be incorporated into powder phase B, which will facilitate the implementation of the product when mixing the two phases.

[0022] The total or partial substitution of mineral fillers such as kaolin or diatomaceous earth, necessary both to allow the obtaining of a creamy final texture and in order to improve the appearance of the mask and its removal (the absence of traces and the aforementioned skin tightness), this without harming the mechanical characteristics of the latter, in particular the cohesion and flexibility of the mask during its removal. It appeared that a satisfactory solution consisted of limiting the mineral fillers to 25% of the filler, the remainder of which was constituted by a mixture in all proportions of sugars, starches and vegetable flours.

[0023] Description of the embodiments.

[0024] Thus, this work has led to the production of a “peel-off” type beauty mask, in the form of two phases A and B to be mixed mechanically before use, phase A being an oil-in-water emulsion, and phase B a powder, their compositions being established according to the following descriptions:

[0025] A phase (A) consisting of an oil-in-water emulsion comprising a soluble alginate salt whose low molecular mass is characterized in that its viscosity in 1% solution at 20°C and pH 7 is less than 200 mPa.s, and comprising other ingredients not causing the gelling reaction of the alginate salt. The emulsification of this phase is obtained by non-ionic surfactants, in particular chosen from monoglycerides, ethoxylated or protoxylated fatty alcohols, polysorbates, stearates as well as phospholipids, the oily phase consisting of a mixture whose components are chosen from saturated or unsaturated fatty acid esters and acids, triglycerides, silicones and their derivatives, mineral oils and their derivatives.

[0026] A phase (B) consisting of a powder comprising mainly a filler consisting of organic compounds such as sugars, starches or vegetable flours and in a maximum proportion of 25% by weight of this phase, of mineral materials such as kaolin or diatomaceous earths. Furthermore, this phase comprises the reagents allowing the control of the gelling of the alginate including a poorly soluble calcium chosen from calcium sulfate dihydrate and dicalcium phosphate, a sequestering agent, as well as other ingredients (active and gelling agents) which do not modify the gelling reaction of the alginate.

[0027] Preferably, the soluble alginate salt of phase A will be sodium alginate, at a concentration of between 2% and 5% by weight of this phase.

[0028] The emulsifying system of phase A will consist exclusively of non-ionic surfactants, preferably between 1% and 10% by weight of this phase, in order to avoid phenomena of interaction with the alginate in solution and destabilization of the emulsion during the implementation of the product by mixing the phases, the simultaneous presence in phase B of a significant content of mineral salts and ionic surfactants being able to lead to destabilization of the emulsion. Preferably, this emulsifying system will consist of monoglycerides and saturated fatty alcohols as well as fatty acid esters, making it possible to obtain an emulsion which nourishes, hydrates and which is favorable to the addition of both polar and non-polar ingredients. Furthermore, this choice makes it possible to obtain a final product having a softer feel than with other surfactants, and facilitates the reduction of traces when removing the mask.

[0029] The components of the oily part of the emulsion of phase A will be chosen from fatty acids and saturated or unsaturated fatty acid esters, triglycerides, silicones and their derivatives or mineral oils and derivatives, preferably a mixture in all proportions of cetyl alcohol and caprylic triglycerides, in a concentration range of between 2% and 20% by weight of this phase.

[0030] Preferably, the sequestering agents of phase B allowing the control of the kinetics of this gelling of the alginate will be chosen from tetrasodium pyrophosphate, disodium phosphate or gluconodeltalactone, at a content of between 0.05% and 5% by weight of this phase, these contents being adjusted in order to allow a setting time of between 5 and 8 minutes, and removal of the mask between 10 and 15 minutes after mixing the two phases A and B.

[0031] In addition, phase B may comprise a gelling agent intended to reduce the flow of the product such as natural vegetable gums, such as guar, konjac, carob gums, gums obtained by bacterial fermentation, such as gellan and xanthan gums, starch derivatives such as distarch phosphate, cellulose derivatives such as hydroxymethylcellulose or microcrystalline cellulose, polysaccharides derived from algae, such as carrageenans and agar-agar, synthetic gelling agents, such as acrylic or vinyl polymers and N-vinylpyrrolidone copolymers, as well as ingredients usually used as pH regulators, such as magnesium oxide.

[0032] Finally, phases A or B may comprise one or more ingredients or active ingredients whose use is known to those skilled in the art for cosmetic products. The choice of the phase comprising a given ingredient will be made according to its physicochemical characteristics, the powders and ionic compounds being preferentially incorporated into phase B, the liquids and non-ionic compounds being preferentially incorporated into phase A.

[0033] The implementation of the products is carried out in a conventional manner for peel-off beauty masks, i.e. the powder phase B is poured into a suitable container, onto which the fluid gel phase A is poured and mixed vigorously.

[0034] Unexpectedly, it appeared that the implementation of the invention could also be carried out by simple manual stirring of the mixture of phases A and B in a closed container of the cocktail shaker type commonly called a “Shaker”, this without requiring the addition of a specific compound such as the aforementioned crosslinked and carboxymethylated starch.

[0035] Thus, for the implementation of the product during its use, phase A can be mixed with phase B according to two operating modes, either by the mechanical action of a mixing means such as a spatula within an open container such as a bowl, or by vigorous manual stirring of the two phases previously introduced within a closed container such as a cocktail shaker.

[0036] Formulas and manufacturing methods in accordance with the compositions according to the invention are now given as examples but in a non-exhaustive manner:

[0037] Examples

[0038] Example 1. Phase A (gel) The water is heated to around 75°C, then the emulsifiers and the oily phase (cetyl alcohol, caprylic triglyceride) are gradually introduced while stirring. After cooling, the other components (glycerin, preservatives, perfume, extract, sodium alginate), also previously heated to 75°C, are introduced while still stirring. Finally, the pH is adjusted between 7.5 and 8.5 with sodium hydroxide.

[0039] [Tables 1] Products % WATER 88.40 CETYL ALCOHOL 1.00 GLYCERYL STEARATE 1.00 FATTY ALCOHOL ETHERS 0.75 CETEARYL ALCOHOL 0.25 CAPRILIC TRIGLYCERIDE 1.50 GLYCERIN 2.00 CHLORPHENESIN 0.30 O-CYMEN-5-OL 0.09 ALARIA ESCULENTA EXTRACT 1.00 FRAGRANCE 0.30 SODIUM ALGINATE 3.40 SODIUM HYDROXIDE 0.01 100.00

[0040] Phase B (powder) The ingredients are introduced in the order described below into a powder mixer and mixed until a homogeneous powder is obtained.

[0041] [Tables2] Products % CORN STARCH 47.27 GLUCOSE 42.90 CALCIUM SULFATE 6.50 TETRASODIUM PYROPHOSPHATE 1.15 MAGNESIUM OXIDE 0.15 NIACINAMIDE 0.01 PYRIDOXINE HYDROCHLORIDE 0.01 SODIUM ASCORBYL PHOSPHATE 0.01 DISTARCH PHOSPHATE 2.00 100.00

[0042] Use: In a bowl, pour 50 grams of emulsion (A) into 30 grams of powder (B) and mix vigorously using a spatula. Then apply the mask to the face. Gelling time between 5 minutes 30 seconds and 7 minutes, remove the mask after 15 minutes.

[0043] Example 2. The operating procedures are identical to those of example 1. Phase A (gel)

[0044] [Tables3] Products % WATER 68.70 CETYL ALCOHOL 2.00 GLYCERYL STEARATE 2.00 POTASSIUM PALMITOYL 1.50 CETEARYL ALCOHOL 1.50 C10-C18 TRIGLYCERIDE 1.00 OCTYL PALMITATE 5.00 COCONUT OIL MIXED ESTERS 5.00 VITAMIN E 0.30 SUNFLOWER SEED OIL 5.00 GLYCERIN 1.00 CHLORPHENESIN 0.30 O-CYMEN-5-OL 0.09 SPIRULINA EXTRACT 1.00 FRAGRANCE 0.30 SODIUM ALGINATE 5.30 SODIUM HYDROXIDE 0.01 100.00

[0045] Phase B (powder)

[0046] [Tables4] Products % DIATOMACEOUS EARTH 25.00 RICE STARCH 54.10 SODIUM CITRATE 1.70 PHOSPHATEDICALCIUM DIHYDRATE 1.40 GLUCONOLACTONE 16.50 LITHOTAMINE EXTRACT 0.15 XANTHAN GUM 1.00 COLORANT 0.15 100.00

[0047] Use: In a bowl, pour 50 grams of emulsion (A) into 30 grams of powder (B) and mix vigorously using a spatula. Then apply the mask to the face. Gelling time between 5 minutes 30 seconds and 7 minutes, remove the mask after 15 minutes.

[0048] Example 3. The operating procedures are identical to those of example 1. Phase A (gel)

[0049] [Tables5] Products % WATER 70.09 GLYCERIN 2.00 XANTHAN GUM 0.50 CADELLILA POLYGLYCERYL-3-ESTER 1.70 GLYCEROL MONOSTEARATE 1.50 CETEARYL ALCOHOL 1.30 SODIUM STEARYL LACTYLATE 1.00 HAZELNUT OIL 2.00 SHEA BUTTER 5.00 VITAMIN E 0.30 ETHYLEXYL PALMITATE 7.50 SODIUM BENZOATE 1.00 POTASSIUM SORBATE 0.30 RASPBERRY SEED EXTRACT 1.00 FRAGRANCE 0.30 SODIUM ALGINATE 4.50 SODIUM HYDROXIDE 0.01 100.00

[0050] Phase B (powder) [Tableauxô] Products % WHEAT FLOUR 15.00 TAPIOCA STARCH 76.90 CALCIUM SULFATE 6.00 TETRASODIUM PYROPHOSPHATE 1.25 MAGNESIUM OXIDE 0.20 LITHOTAMNE EXTRACT 0.15 GUAR GUM 0.50 100.00

[0051] Use: In a bowl, pour 50 grams of emulsion (A) into 50 grams of powder (B) and mix vigorously using a spatula. Then apply the mask to the face. Gelling time between 5 minutes 30 seconds and 7 minutes, remove the mask after 15 minutes.

[0052] Example 4. The operating procedures are identical to those of example 1. Phase A (gel) [Paintings?] Products % WATER 69.09 MICROCRYSTALLINE CELLULOSE 1.00 CETYL ALCOHOL 2.50 GLYCERIN STEARATE 2.50 DICAPRYLYL CARBONATE 5.00 CAPRYLIC TRIGLYCERIDE 1.30 SODIUM STEARYL LACTYLATE 1.00 MACADAMIA OIL 2.00 ETHYLEXYL PALMITATE 7.50 SODIUM BENZOATE 1.00 POTASSIUM SORBATE 0.30 BROWN ALGAE EXTRACT 1.00 FRAGRANCE 0.30 SODIUM ALGINATE 5.50 SODIUM HYDROXIDE 0.01 100.00

[0053] Phase B (powder) [Tables 8] Products % SUCROSE 67.15 TALC 25.00 CALCIUM SULFATE 5.75 TETRASODIUM PYROPHOSPHATE 1.15 MAGNESIUM OXIDE 0.20 LITHOTAMINE EXTRACT 0.15 STARCH PHOSPHATE 0.50 100.00

[0054] Use: In a 200 ml cocktail shaker, pour 65 grams of emulsion (A) into 35 grams of powder (B) and mix vigorously. Then apply the mask to the face. Gelling time between 5 minutes 30 seconds and 7 minutes, remove the mask after 15 minutes.

[0055] Example 5. The operating procedures are identical to those of example 1. Phase A (gel) [Tables 9] Products % WATER 71.04 KONJAC MANNAN 1.00 SUCROSE 0.50 SOY LECITHIN 2.00 XANTHAN GUM 0.70 PULLULAN 5.00 CAPRYLIC TRIGLYCERIDE 1.00 SODIUM STEARYL LACTYLATE 1.00 SUNFLOWER OIL 2.00 ETHYLEXYL PALMITATE 5.00 PHENOXYETHANOL 0.90 PENTYLENE GLYCOL 3.00 CAMELIA EXTRACT 1.00 FRAGRANCE 0.35 SODIUM ALGINATE 5.00 SODIUM HYDROXIDE 0.01 100.00

[0056] Phase B (powder) [Tables 10] Products % SUCROSE 91.15 MODIFIED STARCH 1.50 CALCIUM SULFATE 5.75 TETRASODIUM PYROPHOSPHATE 1.15 MAGNESIUM OXIDE 0.30 ASCORBIC ACID 0.15 100.00

[0057] Use: In a 200 ml cocktail shaker, pour 65 grams of emulsion (A) into 35 grams of powder (B) and mix vigorously. Then apply the mask to the face. Gelling time between 5 minutes 30 seconds and 7 minutes, remove the mask after 15 minutes.

Claims

1. Claims Gellable and peelable cosmetic composition characterized in that it: a. Comes in the form of two phases A and B to be mixed mechanically before use, phase A being an oil-in-water emulsion, and phase B a powder. b. Phase A of which includes: i. An oil-in-water emulsion, the oily phase of which consists of a mixture whose components are chosen from saturated or unsaturated fatty acids and esters, triglycerides, silicones and their derivatives, mineral oils and their derivatives, emulsified by non-ionic surfactants. ii. A soluble alginate salt, the Brookfield viscosity of which in solution at 1% by weight in water at pH 7 and 20°C is less than 200 mPa.s. c. Phase B of which includes: i. A calcium salt selected from calcium sulfate and dicalcium phosphate. ii. A sequestrant selected from tetrasodium pyrophosphate, disodium phosphate, or gluconodeltalactone. iii. A filler consisting of a mixture of organic compounds chosen from sugars, starches and vegetable flours and, in a maximum proportion of 25% by weight of this phase, of mineral materials chosen from kaolin and diatomaceous earths. iv. A gelling agent chosen from: natural vegetable gums, such as guar, konjac, carob gums; gums obtained by bacterial fermentation, such as gellan and xanthan gums; starch derivatives such as distarch phosphate; cellulose derivatives such as hydroxymethylcellulose or microcrystalline cellulose; polysaccharides derived from algae, such as carrageenans and agar-agar; synthetic gelling agents, such as acrylic or vinyl polymers and N-vinylpyrrolidone copolymers.

2. Cosmetic composition according to claim 1, characterized in that the soluble alginate salt is a sodium alginate salt.

3. Cosmetic composition according to the preceding claims, characterized in that the non-ionic surfactants are chosen from monoglycerides, ethoxylated or protoxylated fatty alcohols, polysorbates, stearates and phospholipids.

4. Cosmetic composition according to the preceding claims, characterized in that it comprises one or more ingredients or active ingredients whose use is known to those skilled in the art for cosmetic products.

5. Method for implementing the cosmetic composition produced according to the preceding claims, characterized in that phase A is mixed with phase B either by the mechanical action of a mixing means such as a spatula in an open container such as a bowl, or by vigorous manual stirring of the two phases previously introduced into a closed container of the cocktail shaker type.