COSMETIC COMPOSITION IN THE FORM OF DRY CLEANSING BALLS

Description

Technical field

[0001] The invention relates to a cosmetic composition in the form of dry expanded beads obtained by freeze-drying, the implementation of which by rehydration and mechanical action allows a cleaning solution to be obtained. This responds to the interest shown in anhydrous products by the cosmetics industry due to the reduction in their environmental impact due to the reduction in packaging and the quantity of water to be transported, as well as the reduction or absence of preservatives. Prior art

[0002] The manufacture of products in the form of dry beads is widely described in the literature in expanded form, their production mainly using two families of processes, by extrusion or by freeze-drying.

[0003] Extrusion processes involve compressing a material, either hot or cold, and can be combined with a chemical or enzymatic reaction. These processes offer a large number of possible applications in terms of both the shapes and the galenics of finished products. The most advanced extruders allow pressure and temperature to be controlled at every point in the process. Pressure control and the mixing of ingredients are achieved through one or more endless screws. These systems provide a continuous and inexpensive manufacturing process and also allow the physical chemistry of a finished product to be modified.

[0004] This technique is used in particular in the food industry to produce cereal derivatives such as aperitif snacks or crispy toast of the "cracotte" type (registered trademark), their expanded structure being obtained in particular due to their high polysaccharide contents. The ingredients are mixed at a temperature of 60 to 80°C in order to obtain a thick paste, the temperature is then increased to 120 to 140°C while increasing the pressure to prevent the water present in the product from boiling, which allows the expansion of the product when the product is released, the rapid lowering of the pressure causing a release of the water in gaseous form. (ROUSTEL, S. Cuisson extrusion des aliments. Techniques de l'ingénieur, September 2000, F3120V1, 1-8).

[0005] Lyophilization processes consist of extracting the water contained in products by causing the sublimation of the water they contain by placing them, previously frozen, in a vacuum chamber. First, an aqueous solution generally containing polysaccharides is poured into molds of the desired shape, or poured drop by drop and precipitated in a liquid, is then frozen at a temperature of the order of -25°C to -40°C, then is placed under vacuum while being moderately heated, in order to remain below the triple point of water, thus allowing the sublimation of the water without altering the network previously formed by the polysaccharides in solution. (MARIN, M. and RENE, F. Lyophilisation. Techniques de l'ingénieur, March 2000, F3240V1, 1-9).

[0006] Notwithstanding the specific form of the invention, products of this type are close, in terms of physicochemical properties, to products in the form of water-soluble films. Many works relating to the formulation of water-soluble films are described, these are used in particular in cosmetics for their adhesion properties, resistance to stretching, their barrier effect to oxidation, their film-forming properties as well as for their tensor effect. However, in this field, very little work is reported concerning expanded water-soluble films.

[0007] The properties of these films are evaluated by two types of measurements: 1. The restitution / dissolution time in aqueous medium. This factor makes it possible to evaluate the resistance of the film to the ambient humidity level. Cosmetic applications require rapid and simple dissolution in order to allow the consumer easy use of the finished product, it is therefore necessary to find a balance between restitution speed and ease of use (SAINI, S et al. Optimization of formulation of fast dissolving films made of pullulan polymer. International Journal of Pharmaceutical Sciences Review and Research, August 2011, 9(1), 127-131). 2. The resistance of the film to stretching / twisting. This factor makes it possible to improve the grip of the film by the consumer. It is characterized by tensile strength (σ) and elongation modulus (ε) as well as breaking force (JOST, V. and STRAMM, C. Influence of plasticizers on the mechanical and barrier properties of cast biopolymer films. Journal of Applied Polymer Science, 2015, 133(2)). And (KARKI, S.et al. Thin films as an emerging platform for drug delivery. Asian Journal of Pharmaceutical Sciences, Octobre 2016, 11(5), 559-574). .

[0008] Furthermore, it is possible to vary the film thickness and composition. The formulation of water-soluble films is well known to those skilled in the art in the medical field, where this galenic is used as a means of releasing active molecules. It is based on the synergistic relationships between film-forming molecules such as polysaccharides or proteins and plasticizing molecules such as certain oligosaccharides or glycols (SANYANG, ML et al. Effect of glycerol and sorbitol plasticizers on physical and thermal properties of sugar palm starch based films. Recent Advances in Environment, Ecosystems and Development, April 2015, 157-162). The polysaccharides form a structured three-dimensional network, which allows the formation of a cohesive film when the solvent evaporates, while the plasticizers allow this film to be given the desired mechanical characteristics, in particular its flexibility and texture.

[0009] Among film-forming compounds, pullulan is one of the most widely used polysaccharides for the formulation of water-soluble films, due to its high solubility and plasticity, which facilitates product formulation by limiting the addition of plasticizing substances. It is a glucose homopolysaccharide branched in α(1-6) linked maltotriose, obtained by fermentation of wheat starch by the fungus Aureobasidium pullulans. (LEATHERS, T. Biotechnological production and applications of pullulan. Applied Microbiology and Biotechnology, June 2003, 62:468-473.).

[0010] However, many other polysaccharides are known to be used in the formulation of water-soluble films, allowing different characteristics to be obtained, including starches, alginates, carrageenans, and cellulose derivatives such as hydroxymethylcellulose. The article (FERREIRA, A. et al. Polysaccharide-based membranes in food packaging applications. Membranes, April 2016, 6(2), 1-17.) details their main characteristics.

[0011] The compounds used as plasticizers have a lower steric hindrance, which allows them to be lodged within the network formed by the polysaccharides, modifying the resistance, elasticity, flexibility, appearance and dissolution rate of the film. Among these we can count glycols, such as glycerin and polyethylene glycol, oligosaccharides such as sorbitol, mannitol, xylitol (SOTHORNVIT, R. and KROCHTA, J. Plasticizers in edible films and coatings. Innovations in Food Packaging, 2005, 403-433.) and (The glass transition. University Mississippi. 1998). Furthermore, colloids such as silicas and clays can be used in a limited way, because they do not contribute to the formation of a gelled network, they tend to weaken the dehydrated film, and consequently reduce the glass transition temperature.

[0012] Concerning the production of beads, unlike water-soluble films for which the incorporation of colloidal particles negatively impacts the stability of the film, the incorporation of colloids makes it possible to lighten the matrix network generated by the polysaccharides. Indeed, the nature of a colloidal dispersion (MONGONDRY, P. Structure and rheological behavior of aqueous suspensions of Laponite in the presence of several additives. Data analysis, Statistics and Probabilities, Thesis in chemistry and physicochemistry of polymers from the University of Maine, Le Mans, June 2003, 6-20.) implies particular rheological properties such as significant shear-thinning as well as thixotropy allowing, for example, better spraying of high-viscosity colloidal suspensions.

[0013] Regarding the production of expanded beads in the cosmetic field, their specificity lies essentially in the mechanical implementation allowing this physical form to be given to the product. Few publications report such achievements, among which we can however cite: 1. Patent application CN109350555 A (JIANGSU JLAND BIOTECH CO) February 19, 2019, claim 7, paragraphs

[0032] to

[0043] discloses the method of manufacturing collagen beads, using a freeze-drying technique, but differs significantly in the composition of the product of the present invention, using in particular fermentation techniques, and moreover not precisely describing the technique of forming the beads or the conditions of freeze-drying. 2. Patent application CN112891230 A (GUANGZHOU RIDGEPOLE BIOLOGI-CAL TECH CO) June 4, 2021, claims 1 to 9, paragraphs

[0005] to

[0083] , discloses the formulation and the manufacturing process of beads for cosmetic use obtained by a lyophilization process, and comprising in particular a polyol such as sorbitol and a polysaccharide, including pullulan.The composition is implemented by producing a solution, which is frozen at -45°C in a hemispherical mold, and freeze-dried under a vacuum of 10 to 30 Pa. This patent application, however, differs from the present invention in that its subject matter does not relate to the composition of products for producing beads, the implementation of which makes it possible to obtain a cleaning product, and that the composition does not mention the use of a plasticizing agent such as glycerin; furthermore, this application also does not report the use of colloids in the formulations disclosed. 3. Patent KR102187653 B1 (BEAUTIFUL KOREA CO) August 27, 2020, claims 1, 18 and 19, paragraphs

[0007] to

[0073] , discloses a cosmetic composition obtained by freeze-drying which may be in spherical form.However, this patent differs from the present invention in that it relates to products based on mannitol and hyaluronic acid intended for obtaining moisturizing and anti-wrinkle products.

[0014] US Patent Application Publication 2006 / 0228319 A1 discloses in Example 4 cleaning compositions in the form of a dry film consisting of pullulan-modified starch mixtures containing pullulan, glycerin, corn starch and sodium lauryl ether sulfate.

[0015] To the knowledge of the applicant company, there is no publication describing the formulation and manufacture of expanded beads enabling a cleaning solution to be obtained after rehydration. Statement of the invention

[0016] The present invention having as its object the production of dry cleaning beads obtained by freeze-drying, it will consist in its first step in the production of an aqueous solution intended to be freeze-dried, the composition of which on the one hand will make it possible to obtain the physicochemical characteristics sought for dry cleaning beads, re-hydratable and able to be implemented by mechanical action and on the other hand the viscosity will be compatible with the formation of drops according to the manufacturing process.

[0017] The second step of the freeze-drying process will consist of freezing this solution, under conditions allowing the production of beads. Preferably, a system is used consisting of delivering the solution drop by drop in liquid nitrogen at a temperature of -196°C, which allows them to be frozen by ultra-rapid freezing. Thus, this system consists of sending the solution into a ramp comprising several nozzles whose geometry, in particular their shape and the size of their outlet orifices, is adapted in parallel with the rheology of the solution and its flow rate through these nozzles, in order to allow the production of drops of the desired diameter, which will be between 1 and 8 millimeters, depending on the characteristics desired for the final product. Preferably, a viscosity between 1000 and 30000 mPa.will be sought, and nozzles with a diameter between 1 and 6 mm with a flared outlet will be used, a ball size of the order of 5 to 8 mm corresponding to the order of magnitude of the maximum size that can be obtained by this process.

[0018] Secondarily, another embodiment of the invention consists of pouring the solution into spherical or hemispherical molds, these molds then being frozen by cooling, which allows the production of balls with a larger diameter, between 5 mm and 25 mm.

[0019] Finally, the manufacturing process includes a third step, that of freeze-drying, during which the previously obtained product beads, maintained at a very low temperature, are introduced into the freeze-dryer, then exposed to vacuum and slightly heated for the time necessary for the freeze-drying process. Preferably, vacuum conditions of between 2 and 25 Pa, a loading temperature of between -50 and -150 °C, a reheating temperature of between 25 °C and 50 °C, and a freeze-drying time of between 2 hours and 16 hours will be used, with a condenser at a temperature of between -30 and -80 °C, the exact conditions depending on the quantity of beads to be treated and the dimensional and functional characteristics of the freeze-dryer.

[0020] The dry expanded beads obtained after this freeze-drying step can be used by placing them in the palm of the hand, then pouring 1 to 5 ml of water over them, and then rubbing the two hands against each other, thus causing the beads to disintegrate and obtaining the desired cleaning action.

[0021] The object of the present invention being the design of dry cleaning beads, the composition of the solution comprises one or more surfactant products, at an overall (mass) content of between 0.1 and 10%. These will preferably be chosen from compounds present in the pure state and at room temperature in powder form, this being the physical form most easily compatible with the final production of dry and solid beads capable of being rehydrated.

[0022] Among these surfactants, a mixture of non-ionic surfactants and anionic surfactants will be used in particular, which will be preferentially chosen from sodium cocoyl derivatives, in particular mild foaming anionic surfactants derived from sodium cocoyl, such as sodium methyl cocoyl taurate, sodium cocoyl isethionate, sodium cocoyl glutamate or disodium lauryl succinate, which can be used in combination with non-ionic surfactants to overcome the irritant side of anionics.

[0023] In a variant of the invention, to obtain shampoo, it is also possible to use cationic surfactants, preferably chosen from quaternary ammoniums such as polyquaternium-7.

[0024] As in the aforementioned state of the art, a film-forming agent consisting of polysaccharides will be used, allowing the production after freeze-drying of a fine, water-soluble three-dimensional matrix network; its constituents will be chosen from pullulan, alginates, carrageenans, xanthan or guar gums or cellulose gums, alone or as a mixture, their overall (mass) content being between 0.5 and 10%.

[0025] Preferably, but not exclusively, pullulan will be used at a content of between 0.5 and 5%, due to the particular ability of this compound to allow the physicochemical characteristics closest to those sought to be obtained, slightly sticky on the skin and presenting a good compromise between flexibility and brittleness during the mechanical application of the final product to the skin or hair. Concerning the other aforementioned polysaccharides, which can be used in conjunction with pullulan, their overall content will be between 0.1% and 5%; preferably, xanthan, guar or cellulose gums will be used.

[0026] As in the state of the art, in order to improve the mechanical characteristics of the beads, in particular their flexibility and texture, a plasticizing agent is used, chosen from glycols and polyols, such as glycerin, polyethylene glycol, sorbitol, mannitol, xylitol, or oligosaccharides such as sucrose, at an overall (mass) content of between 0.5 and 10%.

[0027] Preferably, a mixture of glycerin at a content of between 0.5 and 3%, and erythritol at a content of between 0.5 and 3% will be used, due to the particularly favorable impact of this polyol on the softness of the texture of the final product.

[0028] As expected in view of the state of the art, the rheological characteristics of the product can be improved by the addition of a colloidal rheological agent, thus improving its ability to form large droplets. However, the applicant company has unexpectedly found that the addition of a specific mixture consisting of microcrystalline cellulose or colloids such as silicas or clays, and starch powder, improves the rehydration capacity of the final product, whereas the sole use of a gelling agent consisting of polysaccharides can only improve the rheology at the cost of degrading these rehydration characteristics. This rheological agent will be included in the composition at an overall content of between 0.1 and 10%.

[0029] Preferably, the chosen rheological agent will be composed of a mixture of starch at a content of between 2.5 and 7%, associated with microcrystalline cellulose or bentone, at a content of between 0.25 and 1.5%.

[0030] Finally, the composition will include ingredients or active ingredients whose use is known to those skilled in the art for cosmetic products, such as colorants, perfumes, active ingredients and preservatives. Description of the embodiments

[0031] Thus, this work has led to the production of dry cleaning balls, with a diameter of between 1 and 8 mm or between 6 and 25 mm depending on the manufacturing process variant used, which can be easily implemented by placing them in the palm of the hand and disintegrating spontaneously or by mechanical action of a finger in the presence of a few milliliters of water, and therefore allowing effective cleaning of the hands and any other part of the body, including the hair.

[0032] Examples of formulas and methods of manufacture are now given. Examples Example 1. Step 1 - Preparation of the solution to be lyophilized

[0033] Procedure: (1) Introduce the water, colorant, rice extract, pullulan, erythritol, alpha-glucan oligosaccharide and rice starch into a mixer and stir until homogenized. (2) Pre-disperse the xanthan and cellulose gums, crystalline cellulose in the glycerin then add to the previous phase by mixing vigorously until homogenized until a smooth and homogeneous gel is obtained. Then add the disodium lauryl sulfosuccinate, the sodium cocoyl isethionate under slow stirring, then the perfume. Finally, adjust the pH between 4.5 and 6.5 with the citric acid solution. The viscosity of the solution thus produced is in a range between 1000 and 6000 mPa.s. [Table 1] Products % (mass) WATER 82.784 DYE 0.015 RICE EXTRACT 0.100 PULLULAN 0.900 ERYTHRITOL 1.500 ALPHA-GLUCAN OLIGOSACCHARIDE 0.500 RICE STARCH 5.000 CELLULOSE GUM 0.290 XANTHAN GUM 0.200 MICROCRYSTALLINE CELLULOSE 0.510 GLYCERIN 1.500 DISODIUM LAURYL SULFOSUCCINATE 3.700 SODIUM COCOYL ISETHIONATE 2.600 SCENT 0.400 CITRIC ACID 5% 0.001 100.00 Step 2 - Freeze-drying

[0034] Introduce the solution at a flow rate adjusted to allow dropwise flow into a liquid nitrogen bath at -196°C, using a peristaltic pump and a nozzle array with flared outlet orifices, which ensures the almost instantaneous formation of frozen beads approximately 5 mm in size.

[0035] Then recover the frozen beads and place them in a freeze dryer with a loading temperature of -120°C. Then apply a vacuum of 10 Pa, then a temperature of 30°C, the condenser being maintained at a temperature of -65°C, these conditions being maintained for a period of 12 hours, at the end of which it is possible to recover the freeze-dried beads. Description of the implementation for use.

[0036] Place a ball in the palm of your hand and add a few milliliters of water to it. Rub the ball between your two hands until it breaks up, providing the desired cleaning action. Rinse after application. Example 2. Step 1 - Preparation of the solution to be lyophilized

[0037] Procedure: (1) Introduce water, colorant, lotus extract, pullulan, xylitol and yeast extract Saccharomyses cerverisaeand potato starch in a blender and stir until homogenized. (2) Pre-disperse the cellulose gum, brown seaweed extract, and microcrystalline cellulose in butylene glycol and add to the previous phase, mixing vigorously until a smooth, homogeneous gel is obtained. Then add the disodium lauryl sulfosuccinate, sodium cocoyl isethionate with slow stirring, then the perfume. Finally, adjust the pH to between 4.5 and 6.5 with the citric acid solution. The viscosity of the solution thus produced is in the range of 1000 to 6000 mPa.s. [Table 2] Products % (mass) WATER 83.539 DYE 0.010 LOTUS EXTRACT 0.100 PULLULAN 0.800 XYLITOL 1.700 SACCHAROMISED YEAST EXTRACT CEREVISAE 0.100 POTATO STARCH 4.000 CELLULOSE GUM 0.100 BROWN ALGAE EXTRACT 0.250 MICROCRYSTALLINE CELLULOSE 0.450 BUTYLENE GLYCOL 1.500 DISODIUM LAURYL SULFOSUCCINATE 4.000 SODIUM COCOYL ISETHIONATE 3.100 SCENT 0.350 LACTIC ACID 50% 0.001 100.00 Step 2 - Freeze-drying

[0038] Introduce the solution at a flow rate adjusted to allow dropwise flow into a liquid nitrogen bath at -196°C, using a peristaltic pump and a nozzle array with flared outlet orifices, which ensures the almost instantaneous formation of frozen beads approximately 5 mm in size.

[0039] Then recover the frozen beads and place them in a freeze dryer with a loading temperature of -120°C. Then apply a vacuum of 10 Pa, then a temperature of 30°C, the condenser being maintained at a temperature of -65°C, these conditions being maintained for a period of 12 hours, at the end of which it is possible to recover the freeze-dried beads. Description of the implementation for use.

[0040] Place a ball in the palm of your hand and add a few milliliters of water to it. Rub the ball between your two hands until it breaks up, providing the desired cleaning action. Rinse after application. Example 3. Step 1 - Preparation of the solution to be lyophilized

[0041] Procedure: (1) Introduce the water, colorant, green tea extract, pullulan, mannitol, flax seed extract and rice starch into a blender and stir until homogenized. (2) Pre-disperse the guar gum, red algae extract and hydrophilic bentonite in the butylene glycol then add to the previous phase while mixing vigorously until homogenized the butylene glycol in a second blender, then gradually add until a smooth and homogeneous gel is obtained. Then add the disodium lauryl sulfosuccinate, sodium methyl oleyl taurate, 2-propenamide copolymer under slow stirring one by one, then the perfume. Finally, adjust the pH between 4.5 and 6.5 with the citric acid solution. The viscosity of the solution thus produced is in a range between 1000 and 6000 mPa.s. [Table 3] Products % (mass) WATER 81.883 DYE 0.017 GREEN TEA EXTRACT 0.100 PULLULAN 1.100 MANNITOL 1.200 FLAX SEED EXTRACT 0.500 RICE STARCH 3.000 GUAR GUM 0.200 RED ALGAE EXTRACT 0.500 HYDROPHILIC BENTONITE 1.000 BUTYLENE GLYCOL 1.500 DISODIUM LAURYL SULFOSUCCINATE 3.500 SODIUM METHYL OLEYL TAURATE 2.200 COPOLYMER OF 2-PROPENAMIDE AND N,N-DIMETHYL-N-2-PROPENYL-2-PROPENE-1-AMINIUM CHLORIDE 1.500 SCENT 0.500 CITRIC ACID 35% 0.300 100.00 Step 2 - Freeze-drying

[0042] Introduce the solution at a flow rate adjusted to allow dropwise flow into a liquid nitrogen bath at -196°C, using a peristaltic pump and a nozzle array with flared outlet orifices, which ensures the almost instantaneous formation of frozen beads approximately 5 mm in size.

[0043] Then recover the frozen beads and place them in a freeze dryer with a loading temperature of -120°C. Then apply a vacuum of 10 Pa, then a temperature of 30°C, the condenser being maintained at a temperature of -65°C, these conditions being maintained for a period of 12 hours, at the end of which it is possible to recover the freeze-dried beads. Description of the implementation for use.

[0044] Place a ball in the palm of your hand and add a few milliliters of water to it. Rub the ball between your hands until it breaks up, then rub it into your hair, providing the cleansing action you're looking for in a shampoo. Rinse after application. Example 4. Step 1 - Preparation of the solution to be lyophilized

[0045] Procedure: (1) Introduce the water, rice extract, pullulan, sorbitol, alpha-glucan oligosaccharide, corn starch, and colloidal silica into a blender and stir until homogenized. (2) Introduce the glycerin into a second blender, then gradually add the xanthan gums, cellulose gum, and microcrystalline cellulose, stirring vigorously until homogenized. Then introduce this mixture (2) into the mixture (1), keeping the whole thing stirring, until a smooth and homogeneous gel is obtained. Then add the sodium lauroyl sarcosinate, the sodium cocoyl glutamate, stirring slowly, then the perfume. Finally, adjust the pH between 4.5 and 6.5 with the citric acid solution. The viscosity of the solution thus produced is in a range between 1000 and 6000 mPa.s. [Table 4] Products % (mass) WATER 82.099 RICE EXTRACT 0.100 PULLULAN 0.900 COLLOIDAL SILICA 2.000 ALPHA-GLUCAN OLIGOSACCHARIDE 0.500 CORN STARCH 5.000 CELLULOSE GUM 0.290 XANTHAN GUM 0.200 MICROCRYSTALLINE CELLULOSE 0.510 GLYCERIN 1.500 SODIUM LAUROYL SARCOSINATE 4.000 SODIUM COCOYL GLUTAMATE 2.500 SCENT 0.400 CITRIC ACID 5% 0.001 100.00 Step 2 - Freeze-drying

[0046] Pour the solution into 20 mm diameter hemispherical molds and freeze them at a temperature of -40°C for two hours. Assemble the hemispheres two by two, put at room temperature for 20 minutes to be able to remove one of the two hemispherical molds. Then place the remaining hemispheres, containing the frozen beads, in a freeze-dryer with a loading temperature of -120°C. Then apply a vacuum of 10 Pa, then a temperature of 30°C, the condenser being maintained at a temperature of -65°C, these conditions being maintained for a period of 16 hours, at the end of which it is possible to recover the freeze-dried beads. Description of the implementation for use.

[0047] Place a ball in the palm of your hand and add a few milliliters of water to it. Rub the ball between your two hands until it breaks up, which provides the desired cleaning action. Rinse after application.

Claims

1. Cosmetic cleansing composition consisting of dry expanded beads obtained by freezing and then freeze-drying an aqueous solution, characterized in that the solution comprises : a) A film-forming agent composed of polysaccharides chosen from pullulan, alginates, carrageenans, xanthan or guar gums or cellulose, alone or as a mixture, in a total content of between 0.5 and 10%. b) A plasticising agent chosen from glycols, polyols and oligosaccharides, alone or as a mixture, at a total content of between 0.5 and 10%. c) A rheological agent consisting of a mixture comprising on the one hand, alone or as a mixture, microcrystalline cellulose or colloids such as silicas or clays, and on the other hand starch powder, in a total content of between 0.1 and 10%. d) A mixture of surfactants in a proportion of between 0.1 and 10%, preferably chosen from powders.

2. Cosmetic composition according to claim 1, characterized in that the polysaccharide of the solution is composed of pullulan at a content of between 0.5 and 5%, combined with xanthan gum or guar gum or cellulose, alone or as a mixture, the overall content of which is between 0.1 and 5%.

3. Cosmetic composition according to the preceding claims, characterized in that the plasticizing agent of the solution is composed of a mixture of glycerine at a content of between 0.5 and 3% and erythritol at a content of between 0.5 and 3%.

4. Cosmetic composition according to the preceding claims, characterized in that the rheological agent of the solution is composed of starch at a content of between 2.5 and 7%, combined with microcrystalline cellulose or bentone at a content of between 0.25 and 1.5%.

5. Cosmetic composition according to the preceding claims, characterized in that the mixture of surfactant products consists of non-ionic surfactants and anionic surfactants preferably chosen from sodium cocoyl derivatives or disodium lauryl succinate, such as sodium methyl cocoyl taurate, sodium cocoyl isethionate, sodium cocoyl glutamate or disodium lauryl succinate.

6. Cosmetic composition according to the preceding claims, characterized in that the surfactant system additionally comprises a cationic surfactant, preferably chosen from quaternary ammoniums.

7. Method of manufacturing a cosmetic composition according to the preceding claims, characterized in that it comprises the following steps a) Making the aqueous solution. b) This aqueous solution is deep-frozen or frozen in the form of beads, either by a system delivering the solution drop by drop in liquid nitrogen, or by pouring the solution into spherical moulds which are then frozen c) Freeze-drying these beads.

8. Use of a cosmetic composition according to claims 1 to 6, characterized in that the beads are placed in the palm of a hand, then rehydrated and disintegrated by adding 1 to 5 ml of water and rubbing the hands together.