Thickened, clear salt-rich composition, method for lightening same, and use thereof in cosmetics

Abstract

Disclosed is a composition including (per 100% weight): a) 90 wt.-% to 99.0 wt.-% water including, in dissolved form, 0.002 mol/L to 0.1 mol/L of at least one salt of ammonium cation or of a monovalent or multivalent metal cation with an organic or inorganic anion; b) 0.5 wt.-% to 5 wt.-% of a crosslinked anionic polyelectrolyte; and c) 0.5 wt.-% to 5 wt.-% of a compound having formula (II): R.sub.1(OCH.sub.2CH.sub.2).sub.pOH (II), where the weight ratio of the crosslinked anionic polyelectrolyte to the compound of formula (II) is greater than or equal to 0.2 and less than or equal to 2.0, and the molar ratio of the compound of formula (II) to the salt greater than or equal to 0.05 and less than or equal to 1. Also disclosed is a composition in cosmetics and a method for lightening the thickened salt-rich composition.

Claims

1. A composition (C.sub.1) comprising, per 100% of its mass: a)from 90 mass % to 99 mass % of water comprising, in dissolved form, between 0.02 mol and 1 mol per liter of at least one salt (S) of an ammonium cation or of a monovalent or multivalent metal cation (S) with an organic or inorganic anion, b)from 0.5 mass % to 5 mass % of at least one crosslinked anionic polyelectrolyte (PA) derived from the polymerization, in the presence of at least one crosslinking agent, of partially or totally salified 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid with at least one neutral monomer chosen from N,N-dialkylacrylamides, in which each of the alkyl groups includes between 1 and 4 carbon atoms, and at least one monomer of formula (I): ##STR00004## in which R represents a linear or branched alkyl radical including from 8 to 20 carbon atoms and n represents a number greater than or equal to 1 and less than or equal to 20, and c)from 0.5 mass % to 5 mass % of at least one compound of formula (II):
R.sub.1(OCH.sub.2CH.sub.2).sub.pOH(II) in which R.sub.1 represents a saturated or unsaturated, linear or branched hydrocarbon-based aliphatic radical, substituted with one or more hydroxyl groups, including from 12 to 22 carbon atoms, and p represents an integer greater than or equal to 10 and less than or equal to 100, it being understood that, in said composition (C.sub.1), the mass ratio (R.sub.a) between said at least one crosslinked anionic polyelectrolyte (PA) and said at least one compound of formula (II) is greater than or equal to 0.2 and less than or equal to 2.0 and that the mole ratio (R.sub.b) between the at least one compound of formula (II) and the at least one salt (S) is greater than or equal to 0.02 and less than or equal to 1.

2. The composition (C.sub.1) as defined in claim 1, wherein said at least one crosslinked anionic polyelectrolyte (PA) comprises, per 100 mol % of its constituent monomers: from 20 mol % to 80 mol % of monomer units derived from partially or totally salified 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid; from 15 mol % to 75 mol % of monomer units derived from a neutral monomer chosen from N,N-dialkylacrylamides, in which each of the alkyl groups includes between 1 and 4 carbon atoms; from 0.5 mol % to 5 mol % of monomer units derived from a monomer of formula (I) as defined previously.

3. The composition (C.sub.1) as defined in claim 2, wherein said neutral monomer is N,N-dimethylacrylamide.

4. The composition (C.sub.1) as defined in claim 3, wherein said monomer of formula (I) is tetraethoxylated lauryl methacrylate.

5. The composition (C.sub.1) as defined in claim 3, wherein, in formula (II), the radical R.sub.1 represents a radical chosen from linear dodecyl, tridecyl, tetradecyl, pentadecyl and hexadecyl radicals and p represents an integer greater than or equal to 15 and less than or equal to 40.

6. The composition (C.sub.1) as defined in claim 2, wherein said monomer of formula (I) is tetraethoxylated lauryl methacrylate.

7. The composition (C.sub.1) as defined in claim 2, wherein, in formula (II), the radical R.sub.1 represents a radical chosen from linear dodecyl, tridecyl, tetradecyl, pentadecyl and hexadecyl radicals and p represents an integer greater than or equal to 15 and less than or equal to 40.

8. The composition (C.sub.1) as defined in claim 1, wherein said at least one monomer of formula (I) is tetraethoxylated lauryl methacrylate.

9. The composition (C.sub.1) as defined in claim 8, wherein, in formula (II), the radical R.sub.1 represents a radical chosen from linear dodecyl, tridecyl, tetradecyl, pentadecyl and hexadecyl radicals and p represents an integer greater than or equal to 15 and less than or equal to 40.

10. The composition (C.sub.1) as defined in claim 1, wherein, in formula (II), the radical R.sub.1 represents a radical chosen from linear dodecyl, tridecyl, tetradecyl, pentadecyl and hexadecyl radicals and p represents an integer greater than or equal to 15 and less than or equal to 40.

11. The composition (C.sub.1) as defined in claim 1, wherein said at least one crosslinked anionic polyelectrolyte (PA) is a terpolymer of 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid, partially salified in ammonium salt form, of N,N-dimethylacrylamide and of tetraethoxylated lauryl methacrylate, crosslinked with trimethylolpropane triacrylate.

12. The composition (C.sub.1) as defined in claim 1, wherein said at least one crosslinked anionic polyelectrolyte (PA) includes, per 100 mol %: from 60 mol % to 80 mol % of monomer units derived from 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid, partially salified in ammonium form, from 15 mol % to 39.5 mol % of monomer units derived from N,N-dimethylacrylamide, and from 0.5 mol % to 5 mol % of monomer units derived from tetraethoxylated lauryl methacrylate.

13. The composition (C.sub.1) as defined in claim 1, wherein said at least one salt (S) is chosen from halides, carbonates, bicarbonates, phosphates, nitrates, borates and sulfates of an ammonium cation or of a metal cation.

14. The composition (C.sub.1) as defined in claim 1, wherein said at least one salt (S) is a salt (S) of an ammonium cation or of a monovalent or multivalent metal cation (S) with an organic anion bearing at least one chosen from carboxylate, sulfonate and sulfate functions.

15. The composition (C.sub.1) as defined in claim 1, wherein said at least one salt (S) is chosen from sodium chloride, calcium chloride, magnesium chloride, calcium sulfate, ammonium sulfate, calcium carbonate, zinc sulfate, magnesium sulfate, sodium borate, sodium glycolate, sodium citrate, sodium salicylate, sodium lactate, sodium gluconate, zinc gluconate, manganese gluconate, copper gluconate and magnesium aspartate.

16. The composition (C.sub.1) as defined in claim 1, further comprising one or more auxiliary compounds chosen from foaming and/or detergent surfactants, thickening and/or gelling surfactants, thickeners and/or gelling agents, stabilizers, film-forming compounds, solvents and cosolvents, hydrotropic agents, plasticizers, opacifiers, nacreous agents, sequestrants, chelating agents, antioxidants, fragrances, essential oils, preserving agents, conditioning agents, deodorants, bleaching agents intended for bleaching bodily hair and the skin, active principles intended to provide a treating and/or protective action to the skin or the hair, sunscreens, mineral fillers or pigments, particles that give a visual effect or that are intended for encapsulating active agents, exfoliant particles, texture agents, optical brighteners and insect repellents.

17. A topical cosmetic composition for cleansing and/or protecting and/or caring for the skin and/or for improving and/or preserving the esthetic appearance of the skin, the hair or mucous membranes, comprising the composition of claim 1.

18. A process for lightening a composition comprising at least 90% by mass of water, said water comprising, in dissolved form, between 0.02 mol and 1 mol per liter of at least one salt (S) of an ammonium cation or of a monovalent or multivalent metal cation (S) with an organic or inorganic anion, and at least one crosslinked anionic polyelectrolyte (PA) derived from the polymerization, in the presence of at least one crosslinking agent, of partially or totally salified 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid, with at least one neutral monomer chosen from N,N-dialkylacrylamides, in which each of the alkyl groups includes between 1 and 4 carbon atoms, and at least one monomer of formula (I): ##STR00005## in which R represents a linear or branched alkyl radical including from 8 to 20 carbon atoms and n represents a number greater than or equal to 1 and less than or equal to 20, said process comprising a step of adding to said composition an effective amount of at least one compound of formula (II):
R.sub.1(OCH.sub.2CH.sub.2).sub.pOH(II), in which R.sub.1 represents a saturated or unsaturated, linear or branched hydrocarbon-based aliphatic radical, substituted with one or more hydroxyl groups, including from 12 to 22 carbon atoms, and p represents an integer greater than or equal to 10 and less than or equal to 100, such that said composition comprises, on conclusion of this step and per 100% of its mass, a)from 90 mass % to 99 mass % of water comprising, in dissolved form, between 0.02 mol and 1 mol per liter of said at least one salt (S) of an ammonium cation or of a monovalent or multivalent metal cation (S) with an organic or inorganic anion, b)from 0.5 mass % to 5 mass % of said at least one crosslinked anionic polyelectrolyte (PA), c)from 0.5 mass % to 5 mass % of said compound of formula (II), it being understood that the mass ratio (R.sub.a) between said at least one crosslinked anionic polyelectrolyte (PA) and said at least one compound of formula (II) is greater than or equal to 0.2 and less than or equal to 2.0 and the mole ratio (R.sub.b) between the at least one compound of formula (II) and the at least one salt (S) is greater than or equal to 0.02 and less than or equal to 1.

Description

IPREPARATION OF CROSSLINKED ANIONIC POLYELECTROLYTES

(1) I-1 Terpolymer of mmonium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate, N,N-dimethylacrylamide and tetraethoxylated lauryl methacrylate [AMPSNH.sub.4/DMAM/LMA (4 EO) 77.4/19.2/3.4 molar], Crosslinked with trimethylolpropane triacrylate (TMPTA).

(2) 592 g of an aqueous solution containing 15% by mass of ammonium 2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonate (AMPSNH.sub.4) in a tert-butanol/water mixture (97.5/2.5 by volume), 10.1 g of N,N-dimethylacrylamide (DMAM), 4.2 g of tetraethoxylated lauryl methacrylate [LMA (4 EO)] and 0.75 g of TMPTA are placed in a reactor maintained at 25 C. with stirring. After a sufficient time to achieve good homogenization of the solution, it is deoxygenated by sparging with nitrogen heated to 70 C. 0.42 g of dilauroyl peroxide is then added and the reaction medium is then maintained for approximately 60 minutes at 70 C. and then for 2 hours at 80 C. After cooling, the powder which has formed during polymerization is filtered off and dried to obtain the desired product, hereinafter referred to as: Polyelectrolyte (PA).

IIPREPARATION AND EVALUATION OF AQUEOUS COMPOSITIONS ACCORDING TO THE INVENTION AND OF COMPARATIVE AQUEOUS COMPOSITIONS

(3) II-1 Preparation of the Aqueous Compositions According to the Invention

(4) 14 aqueous compositions according to the invention, named (E.sub.1) to (E.sub.14), are prepared, the mass proportions of the constituents of which are indicated in table 1.

(5) The preparation process common to these 14 compositions is as follows: the required amount of water is poured into a reactor equipped with mechanical stirring and a jacket comprising a heat-exchange fluid, at a temperature of 20 C., and is then brought to a temperature of 75 C. with mechanical stirring at a speed of 80 rpm; the crosslinked anionic polyelectrolyte (PA) is then gradually added at this temperature of 75 C. with mechanical stirring; after homogenization of the gel obtained previously, the solubilizing agent of formula (II) to be tested is then gradually added at the temperature of 75 C. with mechanical stirring at a speed of 80 rpm; the mixture obtained is then cooled to a temperature of 40 C., and the salt (S) and the preserving agent are then added to the medium obtained previously, with continued mechanical stirring at a speed of 80 rpm.

(6) TABLE-US-00001 TABLE 1 Composition (E.sub.1) (E.sub.2) (E.sub.3) (E.sub.4) Polyelectrolyte (PA) (mass %) 2.25 2.25 0.50 1 Sodium chloride (S) (mol/liter) 0.34 0.34 0.34 0.34 Euxyl PE9010.sup.(1) (mass %) 1 1 1 1 Simulsol P23.sup.(2) (II) (mass %) 2.50 0 2.50 2.50 Simulsol 58.sup.(3) (II) (mass %) 0 2.50 0 0 Water qs100% qs100% qs100% qs100% R.sub.a = (PA)/(II) (by mass) 0.90 0.90 0.20 0.40 R.sub.b = (II)/(S) (molar) 0.06 0.07 0.06 0.06 Composition (E.sub.5) (E.sub.6) (E.sub.7) (E.sub.8) Polyelectrolyte (PA) (mass %) 1.75 3.00 2.25 2.25 Sodium chloride (S) (mol/liter) 0.34 0.34 0.34 0.34 Euxyl PE9010.sup.(1) (mass %) 1 1 1 1 Simulsol P23.sup.(2) (II) (mass %) 2.50 2.50 1.50 2.000 Water qs100% qs100% qs100% qs100 R.sub.a = (PA)/(II) (by mass) 0.70 1.20 1.50 1.13 R.sub.b = (II)/(S) (molar) 0.06 0.06 0.04 0.05 Composition (E.sub.9) (E.sub.10) (E.sub.11) (E.sub.12) Polyelectrolyte (PA) (mass %) 2.25 2.25 2.25 2.25 Sodium chloride (S) (mol/liter) 0.34 0.34 0.034 0.08 Euxyl PE9010.sup.(1) (mass %) 1 1 1 1 Simulsol P23.sup.(2) (II) (mass %) 3.0 5.0 2.50 2.50 Water qs qs qs qs 100% 100% 100% 100% R.sub.a = (PA)/(II) (by mass) 0.75 0.45 0.9 0.9 R.sub.b = (II)/(S) (molar) 0.07 0.12 0.61 0.24 Composition (E.sub.13) (E.sub.14) Polyelectrolyte (PA) (mass %) 2.25 2.25 Sodium chloride (S) (mol/liter) 0.17 0.26 Euxyl PE9010.sup.(1) (mass %) 1 1 Simulsol P23.sup.(2) (II) (mass %) 2.50 2.50 Water qs 100% qs 100% R.sub.a = (PA)/(II) (by mass) 0.9 0.9 R.sub.b = (II)/(S) (molar) 0.12 0.08 .sup.(1)Euxyl PE9010 is a mixture of phenoxyethanol and ethylhexylglycerol; .sup.(2)Simulsol P23 is a lauryl alcohol ethoxylated with 23 mol of ethylene oxide (MW = 1198); .sup.(3)Simulsol 58 is a palmityl alcohol ethoxylated with 20 mol of ethylene oxide (MW = 1122).

(7) II-2 Preparation of the Comparative Aqueous Compositions

(8) Eight comparative aqueous compositions, named (F.sub.1) to (F.sub.8), are prepared, the mass proportions of the constituents of which are indicated in table 2.

(9) The preparation process common to these eight compositions is as follows: the required amount of water is poured into a reactor equipped with mechanical stirring and a jacket comprising a heat-exchange fluid, at a temperature of 20 C., and is then brought to a temperature of 75 C. with mechanical stirring at a speed of 80 rpm; the crosslinked anionic polyelectrolyte (PA) is then gradually added at this temperature of 75 C. with mechanical stirring; after homogenization of the gel obtained previously, the solubilizing agent of formula (II) to be tested is then gradually added at the temperature of 75 C. with mechanical stirring at a speed of 80 rpm; the mixture obtained is then cooled to a temperature of 40 C., and the salt (S) and the preserving agent are then added to the medium obtained previously, with continued mechanical stirring at a speed of 80 rpm.

(10) TABLE-US-00002 TABLE 2 Composition (F.sub.1) (F.sub.2) (F.sub.3) (F.sub.4) Polyelectrolyte (PA) (mass %) 2.25 2.25 2.25 2.25 Sodium chloride (S) (mol/liter) 0.34 0.34 0.34 0.34 Euxyl PE9010.sup.(1) (mass %) 1 1 1 1 Montanox 20.sup.(4) (II) (mass %) 0 2.50 0 0 Simulsol 1292.sup.(5) (II) (mass %) 0 0 2.50 0 Oramix CG 110.sup.(6) (II) 0 0 0 2.50 (mass %) Water qs100% qs100% qs100% qs100% R.sub.a = (PA)/(II) (by mass) NA 0.9 0.9 0.9 R.sub.b = (II)/(S) (molar) ND 0.06 ND ND Composition (F.sub.5) (F.sub.6) (F.sub.7) (F.sub.8) Polyelectrolyte (PA) (mass %) 2.25 2.25 2.25 2.25 Sodium chloride (S) (mol/liter) 0.34 0.34 0.34 0.34 Euxyl PE9010.sup.(1) (mass %) 1 1 1 1 Sepiclear G7.sup.(7) 2.5 0 0 Simulsol P7.sup.(8) (mass %) 0 2.50 0 0 Simulsol P23.sup.(2) (II) 0 0 0.50 1 (mass %) Water Qs. Qs. Qs. Qs. 100% 100% 100% 100% R.sub.a = (PA)/(II) (by mass) 0.9 0.9 4.5 2.25 R.sub.b = (II)/(S) (molar) ND 0.14 0.012 0.024 .sup.(4)Montanox 20 is a sorbitan monolaurate ethoxylated with 20 mol of ethylene oxide (MW = 1226); .sup.(5)Simulsol 1292 (INCI name: PEG-25 hydrogenated castor oil) is a hydrogenated castor oil ethoxylated with 25 mol of ethylene oxide; .sup.(6)Oramix CG 110 is an aqueous composition comprising caprylyl glucoside and capryl glucoside. .sup.(7)Sepiclear G7 is an aqueous composition comprising n-heptyl glucoside; .sup.(8)Simulsol P7 is a lauryl alcohol ethoxylated with 7 mol of ethylene oxide.

(11) II-3 Demonstration of the Properties and Characteristics of the Aqueous Compositions According to the Invention and of the Comparative Aqueous Compositions

(12) The aqueous compositions (E.sub.1) to (E.sub.14) according to the invention and the comparative compositions (F.sub.1) to (F.sub.8) thus prepared are then stored in an insulated climatic chamber regulated at a temperature of 25 C., for 7 days. On conclusion of this period of 7 days, each aqueous composition is evaluated by the following measurements: measurement of the dynamic viscosity () at 25 C. using a Brookfield LVT viscometer at a speed of 6 rpm (V6), equipped with a suitable spindle, after a period of storage of 7 days at 25 C.; measurement of the turbidity of the aqueous composition obtained at a temperature of 25 C., using an HF Scientific, model DRT100B optical turbidimeter, calibrated beforehand with a formazine solution (0.9 NTU); the turbidity measurements are expressed in NTU units; visual evaluation of the appearance of the aqueous composition prepared after a period of storage of three months at 25 C.; the visual appearance of each aqueous composition is noted by the experimenter and qualified as clear (L), cloudy (T) or cloudy-heterogeneous (T-H), depending on the case.

(13) The results obtained for the aqueous compositions (E.sub.1) to (E.sub.14) according to the invention and the comparative compositions (F.sub.1) to (F.sub.8) are collated, respectively, in tables 3 and 4 below.

(14) TABLE-US-00003 TABLE 3 Compositions (E.sub.1) (E.sub.2) (E.sub.3) (E.sub.4) (E.sub.5) Visual appearance after 7 L L L L L days at 25 C. Visual appearance after 3 L L L L L months at 25 C. after 7 days at 25 C. 8300 8400 100 155 3000 Turbidity (NTU) 11 14 14 15 20 Compositions (E.sub.6) (E.sub.7) (E.sub.8) (E.sub.9) (E.sub.10) Visual appearance after 7 L L L L L days at 25 C. Visual appearance after 3 L L L L L months at 25 C. after 7 days at 25 C. 22 700 10 600 9700 7300 5500 Turbidity (NTU) 24 11 13 12 23 Compositions (E.sub.11) (E.sub.12) (E.sub.13) (E.sub.14) Visual appearance after 7 L L L L days at 25 C. Visual appearance after 3 L L L L months at 25 C. after 7 days at 25 C. 21 800 15 400 15 100 12 900 Turbidity (NTU) 19 24 20 15

(15) TABLE-US-00004 TABLE 4 Compositions (F.sub.1) (F.sub.2) (F.sub.3) (F.sub.4) Visual appearance after 7 T T T T days at 25 C. Visual appearance after 3 T T T T-H months at 25 C. after 7 days at 25 C. 58 000 15 000 9500 20 000 Turbidity (NTU) >500 >150 >150 >150 Compositions (F.sub.5) (F.sub.6) (F.sub.7) (F.sub.8) Visual appearance after 7 T T T T days at 25 C. Visual appearance after 3 T T T T months at 25 C. after 7 days at 25 C. 25 500 40 000 20 000 14 340 Turbidity (NTU) >150 65 155 52

(16) II-4 Analysis of the Results

(17) a) The use of solubilizing agents known to those skilled in the art, for instance Polysorbate 20, hydrogenated castor oil ethoxylated with 25 mol of ethylene oxide, caprylyl/capryl glucoside or n-heptyl glucoside, which are respectively present in the comparative compositions (F.sub.2), (F.sub.3), (F.sub.4) and (F.sub.5), does not make it possible to sufficiently and satisfactorily lighten a thickened aqueous composition, comprising a mass amount of 2% of sodium chloride, represented by composition (F.sub.1). Specifically, the comparative compositions (F.sub.2), (F.sub.3), (F.sub.4) and (F.sub.5), differing only in the nature of the solubilizing agent, do not make it possible to reach a turbidity value of less than 100 NTU.

(18) b) The use as solubilizing agent of a lauryl alcohol ethoxylated with 23 mol of ethylene oxide and of a palmityl alcohol ethoxylated with 20 mol of ethylene oxide, which are respectively present in compositions (E.sub.1) and (E.sub.2), makes it possible to sufficiently and satisfactorily lighten a thickened aqueous composition, comprising a mass amount of 2% of sodium chloride, represented by composition (F.sub.1), whereas the use of a lauryl alcohol ethoxylated with 7 mol of ethylene oxide in composition (F.sub.6) does not make it possible to obtain sufficient and satisfactory lightening. Specifically, compositions (E.sub.1) and (E.sub.2) according to the invention are characterized by a turbidity value of 11 NTU and 14 NTU, respectively, whereas the turbidity of the comparative composition (F.sub.6) is equal to 65 NTU.

(19) c) Compositions (E.sub.3) to (E.sub.14) according to the invention show the obtention of turbidity values of less than 25 NTU, for various values of the mass ratio R.sub.a and the mole ratio R.sub.b as defined previously, with various mass proportions of the ingredients concerned. The comparative compositions (F.sub.7) and (F.sub.8) show that when at least one of the ratios R.sub.a or R.sub.b is not within the required value ranges, the lightening afforded is insufficient and unsatisfactory. Specifically, in the case of the comparative composition (F.sub.7), the value of the mass ratio R.sub.a is established at 4.5, the value of the mole ratio R.sub.b established at 0.012 and the turbidity value of composition (F.sub.7) is measured at 155 NTU. Similarly, in the case of the comparative composition (F.sub.8), the value of the mass ratio R.sub.a is established at 2.25 and the turbidity value of composition (F.sub.8) is measured at 52 NTU.

(20) Placing in perspective the results obtained for compositions (E.sub.1) to (E.sub.14) according to the invention and the comparative compositions (F.sub.1) to (F.sub.8) clearly reveals that the lightening of thickened, salt-rich aqueous compositions, conserving a sufficient level of viscosity, could not be deduced from the results associated with the aqueous compositions of the prior art.

IIIDRAINING AND REFRESHING FLUID FOR HEAVY LEGS

(21) TABLE-US-00005 Formula A Sepinov EMT10 0.75% Polyelectrolyte (PA.sub.1) 0.75% Glycerol 2% Water qs 100% B Simulsol 58 4% C Ethanol 20% Sculptosane 1% Euxyl K701 1% Essential oil of peppermint 0.25% Essential oil of Siberian cypress 0.25%
Procedure: Sepinov EMT10 and the polyelectrolyte (PA.sub.1) are dispersed in the mixture of water and glycerol brought beforehand to a temperature of 75 C., with mechanical stirring using a turbomixer of rotor-stator type, at a speed of 2000 rpm until a homogeneous gel is obtained. Phase B is then gradually added to the aqueous gel obtained beforehand, with mechanical stirring at a speed of 1500 rpm. The mixture is then cooled to a temperature of 40 C., phase C is then gradually added and the formulation obtained is then homogenized for 30 minutes at room temperature. The commercial products used in the examples are defined as follows: Sepinov EMT 10 (INCI name: Hydroxyethyl acrylate/sodium acryloyldimethyltaurate copolymer) is a thickening polymer sold by the company SEPPIC; Sculptosane (INCI name: Aqua (and) Butylene Glycol (and) Plankton Extract (and) Arginine Ferulate) is a water-soluble plankton extract with densifying properties on the skin's epidermis, sold by the company SEPPIC; EuxylK702 (INCI name: Benzoic Acid, Dehydroacetic Acid, Phenoxyethanol, Polyaminopropyl Biguanide and Ethylhexylglycerin) is a mixture used as a preserving agent, sold by the company SEPPIC.