WO2018158215A1

WO2018158215A1 - Foaming aqueous gel comprising an alkyl sulfate derivative, an alkyl polyglucoside, a polyol and an organic acid

Info

Publication number: WO2018158215A1
Application number: PCT/EP2018/054742
Authority: WO
Inventors: Florence L'alloret; Vincent DESCHAMPS
Original assignee: L'oreal
Priority date: 2017-02-28
Filing date: 2018-02-27
Publication date: 2018-09-07
Also published as: FR3063225A1; FR3063225B1

Abstract

The present invention relates to a foaming cleansing composition in the form of an aqueous gel comprising at least one alkyl sulfate derivative, at least one alkyl polyglucoside, optionally at least one alkyl betaine derivative, at least one polyol and at least one organic acid, the mass ratio of alkyl sulfate derivatives/alkyl polyglucosides being between 0.5 and 2.5, preferably between 0.8 and 1.3 and even more preferentially between 0.9 and 1.2. The composition in accordance with the invention is a transparent, stable foaming cleansing composition, with excellent cosmeticity, especially with optimized viscosity, without the addition of thickening polymer for easy use. The composition of the invention moreover has good foam quality and good sensory properties on the skin especially after rinsing.

Description

Foaming aqueous gel comprising an alkyl sulfate derivative, an alkyl polyglucoside, a polyol and an organic acid

The present invention relates to a foaming cleansing composition in the form of an aqueous gel comprising at least one anionic surfactant chosen from alkyl sulfate derivatives, at least one nonionic surfactant chosen from alkyl polyglucosides, at least one polyol and at least one organic acid, and also to the use of said composition especially in the cosmetic field, as products for cleansing or removing makeup from keratin materials such as the skin, keratin fibers (eyelashes and hair) or the scalp, and also for treating greasy skin and/or disinfecting the skin and/or the scalp.

Cleansing of the skin is very important for facial care. It must be as effective as possible since fatty residues, such as excess sebum, the residues of cosmetic products used daily and makeup products accumulate in the skin folds and can block the skin pores and lead to the appearance of spots.

One way of satisfactorily cleansing the skin is to use foaming cleansing products. The foaming cleansing products currently commercially available are in the form of foaming soap bars, gels or creams. They generally contain either soaps, which have the advantage of giving a creamy foam but may cause tautness due to their excessive detergent power, or foaming surfactants such as sulfate surfactants, in particular sodium lauryl sulfate (SLS) or sodium laureth sulfate (SLES), or amphoteric surfactants, for instance cocoyl betaine, cocamidopropylbetaine or sodium cocoamphodiacetate, which are highly efficient in terms of foam and of detergent power.

Moreover, foaming products may be thickened by means of a salt, for example sodium chloride, for certain surfactants, or by adding a thickener of alkyl-PEG type such as PEG- 150 distearate or PEG-55 propylene glycol oleate, or by adding a gelling agent of natural gum type, in particular xanthan gum, scleroglucan gum or carrageenan gum.

Thickening with salt is a known approach that is widely used, since it makes it possible both to be cheap and also not to impair the foam qualities; however, in general, it cannot significantly thicken the composition for all surfactant systems. On the other hand, increasing the viscosity of the medium with a thickening or gelling agent is more multi- purpose, but often has a negative impact on the foam qualities of the formula (start of foaming and amount of foam) and may be negatively perceived on account of the sensory impact of ingredients of this type (texture that is too glidant on application, with a gelled aspect, or else difficult to rinse out).

Skin-cleansing cosmetic compositions, and in particular foaming cleansing products, are thus widely used on a daily basis and consumers express the need for foaming products of simple composition which have the following characteristics:

- a transparent texture often associated with aqueous realms and skin purification, the presentation of this type of texture in transparent packagings making it possible to highlight the specificity of this type of texture;

- a texture whose viscosity is optimized to facilitate the use of the product - specifically, thick foaming formulations are not easy to extract from the packaging (especially by children or the elderly), while excessively fluid foaming formulations are difficult to handle;

- while at the same time conserving good foaming qualities.

It thus appears necessary to have novel stable skin-cleansing foaming compositions of transparent appearance, the texture of which is optimized in terms of viscosity to improve the working qualities, while at the same time having compositions not including any thickening polymer. The desired cosmetic qualities are excellent, in terms of foaming properties and of skin finish after rinsing.

It has been discovered, surprisingly, that the combination of at least one anionic surfactant chosen from alkyl sulfate derivatives, at least one nonionic surfactant chosen from alkyl polyglucosides, at least one polyol and at least one organic acid, with an appropriately chosen mass ratio of alkyl sulfate derivatives/alkyl polyglucosides, makes it possible to obtain stable, transparent, foaming skin-cleansing compositions which have excellent cosmeticity, especially with optimized viscosity for easy use, without the addition of thickening polymer.

One subject of the present invention is thus a foaming cleansing composition in the form of an aqueous gel comprising at least one anionic surfactant chosen from alkyl sulfate derivatives, at least one nonionic surfactant chosen from alkyl polyglucosides, at least one polyol and at least one organic acid, the mass ratio of alkyl sulfate derivatives/alkyl polyglucosides being between 0.5 and 2.5.

The composition in accordance with the invention makes it possible to obtain a foaming cleansing composition that is advantageously transparent and stable, with excellent cosmeticity, especially with optimized viscosity, without the addition of thickening polymer for easy use. The composition of the invention moreover has good foam quality and good sensory properties on the skin especially after rinsing.

The term "stable composition" refers to a composition which, after 2 months of storage at any temperatures between 4°C and 45°C, do not show any macroscopic change in color, odor or viscosity, or any variation in microscopic appearance.

Thus, advantageously, the composition according to the invention is transparent. The term "transparent composition" refers to a macroscopically homogeneous composition through which it is possible to see distinctly with the naked eye.

The transparency of a composition may be measured by its turbidity, and NTUs (nephelometric turbidity units) are the units for measuring the turbidity of a composition. The turbidity measurement may be performed, for example, with a model 21 OOP turbidimeter from the Hach Company, the tubes used for the measurement being referenced AR397A cat 24347-06. The measurements are performed at room temperature (20°C to 25°C) and at atmospheric pressure.

In particular, the composition according to the invention may have a turbidity value of less than or equal to 200 NTU units, better still less than or equal to 100 NTU units, preferentially less than or equal to 50 NTU units, in particular less than or equal to 20 NTU units and even more particularly less than or equal to 10 NTU units.

According to a particular embodiment, the composition in accordance with the invention is a macroscopically homogeneous and transparent composition whose light transmittance, at a wavelength equal to 500 nm, through a sample 1 cm thick, is at least 10%, which corresponds to an absorbance [abs = -log(transmittance)] of less than 1.5. The transparency of a transparent composition also corresponds to a range between 0 and 50 NTU measured using a Hach Company, model 21 OOP portable turbidimeter.

According to another particular embodiment, the viscosity of the compositions of the invention is moreover between 0.5 and 5 Pa.s, preferably between 0.65 and 2 Pa.s and even more preferentially between 0.8 and 1 .2 Pa.s at a temperature of 25°C, the viscosity being measured using a Rheomat 180 (from the company Lamy), equipped with an MS-R1 , MS-R2, MS-R3, MS-R4 or MS-R5 spindle chosen according to the consistency of the composition, rotating at a spin speed of 200 rpm.

According to a particular embodiment of the invention, the compositions are free of thickening polymer. According to the invention, the term "free of thickening polymer" refers to compositions containing less than 1 %, preferably less than 0.5% or even less than 0.2% by weight or 0% by weight of thickening polymer.

According to a particular embodiment of the invention, the composition comprises at least one additional surfactant chosen from alkyl betaine derivatives, which makes it possible to maximize the performance qualities of the composition in terms of viscosity and cosmeticity. A subject of the invention is also a process for the cosmetic treatment of keratin materials, which consists in applying to the keratin materials a composition as defined above.

A subject of the invention is also the use of said composition in cosmetics or dermatology, and in particular for caring for, protecting and/or making up keratin materials, especially bodily or facial skin, or for haircare.

The composition according to the invention is intended for topical application and thus comprises a physiologically acceptable medium. The term "physiologically acceptable medium" means a medium that is compatible with keratin materials.

In the context of the present invention, the term "keratin material" especially means the skin, the scalp, keratin fibers such as the eyelashes, the eyebrows, head hair, bodily hair, the nails, and mucous membranes such as the lips, and more particularly the skin (body, face, area around the eyes, eyelids).

In the text hereinbelow, the expression "at least one" is equivalent to "one or more" and, unless otherwise indicated, the limits of a range of values are included in that range.

Surfactants

The anionic surfactant(s) chosen from alkyl sulfate derivatives and the nonionic surfactant(s) chosen from alkyl polyglucosides, present in the composition of the invention, and also the surfactant(s) chosen from alkyl betaines which may be present in the composition, are foaming.

Foaming surfactants are detergents and differ from emulsifying surfactants by their HLB (hydrophilic-lipophilic balance) value, the HLB being the ratio between the hydrophilic part and the lipophilic part in the molecule. The term "HLB" is well known to those skilled in the art and is described, for example, in "The HLB system. A time-saving guide to Emulsifier Selection" (published by ICI Americas Inc.; 1984).

The term "HLB" is well known to those skilled in the art, and denotes the hydrophilic- lipophilic balance of a surfactant. The HLB or hydrophilic-lipophilic balance of the surfactant(s) used according to the invention may be determined via the Griffin method or the Davies method.

The higher the value, the greater the solubility in water, and, conversely, the lower the value, the greater the affinity of the surfactant for oil.

The Griffin HLB value is defined in the publication J. Soc. Cosm. Chem. 1954 (Volume 5), pages 249-256 or the HLB determined experimentally and as described in the publication from the authors F. Puisieux and M. Seiller, entitled Galenica 5: Les systemes disperses - Tome I - Agents de surface et emulsions - Chapitre IV - Notions de HLB et de HLB critique, pages 153-194 - paragraph 1.1.2. Determination de HLB par voie experimental

[Experimental determination of HLB], pages 164-180.

It is preferably the calculated HLB values that should be taken into account.

The calculated HLB is defined as being the following coefficient:

calculated HLB = 20 x molar mass of the hydrophilic part / total molar mass.

The Davies HLB consists in summing up the hydrophilic and lipophilic contributions made by each of the structural groups of the surfactant:

H LB ^ H LBhydrophilic groups "∑ H LBhydrophobic groups 7 Thus, the HLB of the surfactant is equal to the sum of the HLB values of the hydrophilic groups minus the sum of the HLB values of the hydrophobic groups plus 7.

HLB tables exist for the various standard groups, which may be found especially in the following treatise: Surfactants in Cosmetics, second edition, surfactant science series volume 68, edited by Martin M.Rieger & Linda D.Rhein, p. 134, table 4.

Reference may be made to Kirk-Othmer's Encyclopedia of Chemical Technology, volume 22, pages 333-432, 3rd Edition, 1979, Wiley, for the definition of the emulsifying properties and functions of surfactants, in particular pages 347-377 of this reference for the anionic and nonionic surfactants.

According to a particular embodiment of the invention, the HLB values of the surfactant(s) are determined according to the Davies method which defines a scale ranging from 0 to several tens (in general up to 50).

For emulsifying surfactants, the HLB generally ranges from 3 to 8 for the preparation of water-in-oil (W/O) emulsions and from 8 to 18 for the preparation of oil-in-water (O/W) emulsions, whereas foaming surfactants generally have an HLB of greater than 18 and better still greater than 20.

Alkyl sulfate-based anionic surfactants

The alkyl sulfate-based anionic surfactant(s) that may be used in the context of the invention comprise at least one sulfate function (-OSO3H or -OS03^")- They may be chosen from the following compounds: alkyl sulfates, alkyl ether sulfates, alkylamido ether sulfates, alkylarylpolyether sulfates, and mixtures thereof; and the salts of these compounds; the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, especially from 8 to 24, better still from 8 to 16, even from 10 to 14 carbon atoms; the aryl group preferably denoting a phenyl or benzyl group; these compounds may be polyoxyethylenated and then preferably comprise from 1 to 50 ethylene oxide units, better from 2 to 10 ethylene oxide units. Preferably, they are non-polyoxyethylenated.

Preferentially, the alkyl sulfate-based anionic surfactant(s) are chosen from:

- alkyl sulfates, the linear or branched alkyl group comprising from 8 to 24 carbon atoms, especially from 10 to 20 carbon atoms,

- alkyl ether sulfates, the linear or branched alkyl group comprising from 8 to 24 carbon atoms, especially from 10 to 20 carbon atoms, which are preferably non-ethoxylated,

- and mixtures thereof;

in particular in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts.

When the anionic surfactant is in salt form, said salt may be chosen from alkali metal salts, such as the sodium or potassium salt, ammonium salts, amine salts and in particular amino alcohol salts, and alkaline-earth metal salts, such as the magnesium salt.

Examples of amino alcohol salts that may be mentioned include monoethanolamine, diethanolamine and triethanolamine salts, monoisopropanolamine, diisopropanolamine or triisopropanolamine salts, 2-amino-2-methyl-1 -propanol salts, 2-amino-2-methyl-1 ,3- propanediol salts and tris(hydroxymethyl)aminomethane salts.

Alkali metal or alkaline-earth metal salts and in particular the sodium or magnesium salts are preferably used.

According to a particular embodiment of the invention, the alkyl sulfate derivative(s) are chosen from (C8-C24)alkyl sulfates, preferably (C10-C20)alkyl sulfates, and mixtures thereof; in particular in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts.

Alkyl sulfate derivatives that may be mentioned include the following surfactants:

- sodium lauryl sulfate sold under the names Texapon LS 30 by the company BASF; Texapon LS 30 or Texapon LS 30 NA or Texapon LS 30/MB by BASF; Sulfetal LS-RSPO - B by Zschimmer & Schwarz; Stepanol WA-Extra HP or Stepanol WA-extra HP/MB by Stepan; Wilfares LX28 / RSPO (MB) by Wilmar; Rosulfan L/PH or Rosulfan L/PH MB by PCC Exol; Rhodapon LX-28 FLA or Rhodapon LX-28 RLB by Rhodia (Solvay); Alkopon 24 S 29 by Oxiteno; Tensopol S30LSHPH by Tensachem;

- sodium cocoyl sulfate sold under the name Mackol CAS 100N by the company Novecare. In a preferred mode of the invention, the alkyl sulfate-based surfactant is sodium lauryl sulfate.

The alkyl sulfate derivative(s) may be present in the composition in accordance with the invention in an active material (AM) content ranging from 0.5% to 20% by weight, preferably from 1 % to 15% by weight, even more preferentially from 1 .5% to 12% by weight and better still from 2% to 10% by weight relative to the total weight of the composition.

Alkyl polvglucoside nonionic surfactants

For the purposes of the present invention, the term "alkyl polyglycoside" means an alkylmonosaccharide (degree of polymerization 1 ) or an alkyl polysaccharide (degree of polymerization greater than 1 ).

The alkyl polyglycosides may be used alone or in the form of mixtures of several alkyl polyglycosides. They generally correspond to formula (I) below: in which:

the radical Ri denotes a linear or branched alkyl radical comprising from 8 to 30 carbon atoms, preferably from 8 to 24 carbon atoms, even more preferentially from 8 to 18 carbon atoms, better still from 10 to 16 carbon atoms and even better still from 10 to 12 carbon atoms;

the group G is a saccharide residue;

a is a number ranging from 1 to 10, preferably from 1 to 5 and especially from 1 .2 to 3. Examples of alkyl polyglucosides that may be mentioned include decyl glucoside, for instance the product sold under the name Mydol 10^® by the company Kao Chemicals or the product sold under the name Plantacare 2000 U P^® by the company Henkel or the product sold under the name Oramix NS 10^® by the company SEPPIC; caprylyl/capryl glucoside, for instance the product sold under the name Plantacare KE 371 1 ^® by the company Cognis or Oramix CG 1 10^® by the company SEPPIC; lauryl glucoside, for instance the product sold under the name Plantacare 1200 UP^® by the company Henkel or Plantaren 1200 N^® by the company Henkel; cetearyl glucoside optionally as a mixture with cetostearyl alcohol, for example sold under the name Montanov 68 by the company SEPPIC, under the name TEGO Care CG90 by the company Evonik Goldschmidt and under the names Emulgade PL1618 or Emulgade KE 3302 by the company Cognis; cocoyl glucoside, for instance the product sold under the name Plantacare 818 UP^® or Plantacare 818 UP MB by the company BASF; methyl cocoyl glucoside sold under the name Eumulgin GTS by the company Cognis; octyldodecyl xyloside sold, for example, under the names Fluidanov 20X or Easynov by the company SEPPIC; caprylyl glucoside, for instance the product sold under the name Plantacare 810 UP^® by the company Cognis.

According to a particular embodiment of the invention, the radical Ri denotes a linear or branched, preferably linear, alkyl radical comprising from 8 to 18 carbon atoms, preferably from 10 to 12 carbon atoms.

According to another particular embodiment of the invention, (G)_a is a glucoside group comprising from 1 to 5 and especially 1 .2 to 3 glucoside units.

The saccharide residue may be chosen from glucose, dextrose, saccharose, fructose, galactose, maltose, maltotriose, lactose, cellobiose, mannose, ribose, dextran, talose, allose, xylose, levoglucan, cellulose and starch. More preferentially, the saccharide residue denotes glucose.

It should also be noted that each unit of the polysaccharide part of the alkyl polyglycoside may be in a or β isomer form, in L or D form, and the configuration of the saccharide residue may be of furanoside or pyranoside type.

It is, of course, possible to use mixtures of alkyl polysaccharides, which may differ from each other in the nature of the borne alkyl unit and/or the nature of the bearing polysaccharide chain. According to a particular embodiment of the invention, the alkyl polyglucoside(s) are chosen from decyl glucoside, lauryl glucoside and cocoyl glucoside. Preferably, they are chosen from decyl glucoside and cocoyl glucoside. Even more preferentially, it is cocoyl glucoside. The alkyl polyglucoside(s) may be present in the composition in accordance with the invention in an active material (AM) content ranging from 1 % to 20% by weight, preferably from 1.5% to 15% by weight, even more preferentially from 2% to 12% by weight and better still from 2.5% to 10% by weight relative to the total weight of the composition.

In the composition in accordance with the invention, the anionic surfactant(s) chosen from alkyl sulfate derivatives and the nonionic surfactant(s) chosen from alkyl polyglucosides are present in a mass ratio of alkyl sulfate derivatives/alkyl polyglucosides of between 0.5 and 2.5, preferably between 0.8 and 1 .3 and even more preferentially between 0.9 and 1 .2.

According to a particular embodiment of the invention, the compositions are free of additional surfactants other than the alkyl sulfate derivatives and the alkyl polyglucosides as defined above. According to the invention, the term "free of" additional surfactants other than the alkyl sulfate derivatives and the alkyl polyglucosides as defined above means compositions containing less than 1 %, preferably less than 0.5%, or even less than 0.2% by weight or 0% by weight of additional surfactants other than the alkyl sulfate derivatives and the alkyl polyglucosides as defined above.

Alkyl betaine derivatives

According to a particular embodiment of the invention, the composition comprises at least one additional surfactant chosen from alkyl betaine derivatives, which makes it possible to maximize the performance qualities of the composition in terms of viscosity and cosmeticity, especially transparency.

Examples of betaine derivatives that may be mentioned include cocoyl betaine, for instance the product sold under the names Dehyton AB-30® by the company Cognis; Dehyton AB 30 or Dehyton AB 30/MB by BASF; Betapav A1214.30L by Nipav; Galaxy Cocobetaine or Galaxy Cocobetaine-MB by Galaxy Surfactants or Genagen KB by Clariant; Mirataine BB/FLA by Rhodia (Solvay); Empigen BB / FL by I nnospec Active Chemicals; Tego Betain AB 1214 by Evonik Goldschmidt; Coco Betaine by Guangzhou Flowers Song Fine Chemic; Rokamina K30B by PCC Exol; Amphitol 24B-2 by Kao, lauryl betaine, for instance the product sold under the name Genagen KB® by the company Clariant; oxyethylenated (10 OE) lauryl betaine, for instance the product sold under the name Lauryl Ether (10 OE) Betaine® by the company Shin Nihon Rica; oxyethylenated (10 OE) stearyl betaine, for instance the product sold under the name Stearyl Ether (10 OE) Betaine® by the company Shin Nihon Rica; cocamidopropyl betaine sold, for example, under the name Velvetex BK 35® by the company Cognis; undecylenamidopropyl betaine sold, for example, under the name Amphoram U® by the company Ceca; and mixtures thereof.

According to a particular embodiment of the invention, the composition comprises at least one alkyl betaine, the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, especially from 8 to 24, better still from 8 to 16 or even from 10 to 14 carbon atoms. According to a preferred embodiment, the alkyl betaine(s) are chosen from cocoyi betaine and lauryl betaine. Preferably, the alkyl betaine is cocoyi betaine.

The alkyl betaine derivative(s) are generally present in an active material (AM) content ranging from 0.5% to 10% by weight, preferably from 0.8% to 8% by weight, even more preferentially from 1 % to 5% by weight and better still from 1.2% to 3% by weight relative to the total weight of the composition.

According to a particular embodiment of the invention, the compositions are free of additional surfactants other than the alkyl sulfate derivatives, the alkyl polyglucosides and the alkyl betaine derivatives as defined above. According to the invention, the term "free of" additional surfactants other than the alkyl sulfate derivatives, the alkyl polyglucosides and the alkyl betaine derivatives as defined above means compositions containing less than 1 %, preferably less than 0.5%, or even less than 0.2% by weight or 0% by weight of additional surfactants other than the alkyl sulfate derivatives, the alkyl polyglucosides and the alkyl betaine derivatives as defined above.

Additional surfactants

The composition according to the invention may comprise, besides the alkyl sulfate derivatives, the alkyl polyglucosides and the alkyl betaines, at least one "additional" surfactant. The additional surfactants used in the composition according to the invention may be chosen from nonionic, amphoteric or zwitterionic, anionic and cationic surfactants. According to a particular embodiment, they are chosen from nonionic, amphoteric and anionic surfactants. Preferably, they are chosen from nonionic surfactants and anionic surfactants.

Reference may be made to the document "Encyclopedia of Chemical Technology, Kirk- Othmer", volume 22, pages 333-432, 3rd edition, 1979, Wiley, for the definition of the properties and (emulsifying) functions of surfactants, in particular pages 347-377 of said reference, for the anionic, amphoteric and nonionic surfactants. According to a particular embodiment, the additional surfactant(s) are foaming surfactants. In particular, the additional surfactant(s) other than the alkyi sulfate derivatives, the alkyi polyglucosides and the alkyi betaines may be chosen from the following surfactants. a) Anionic surfactants

The anionic surfactants may be chosen, for example, from soaps (fatty acid salts), carboxylates, for instance sulfosucci nates, acylamino acids, amido ether carboxylates, alkyi polyaminocarboxylates, isethionates, alkyi methyl taurates, alkyi phosphates (monoalkyi or dialkyl phosphates), alkyi sulfoacetates, fatty acid sulfonates and fatty acid ester sulfonates, salts thereof, and mixtures thereof.

The soaps are obtained from a fatty acid which is partially or completely saponified (neutralized) with a basic agent. These are alkali metal or alkaline-earth metal soaps or soaps of organic bases. Use may be made, as fatty acids, of saturated, linear or branched fatty acids comprising from 8 to 30 carbon atoms and preferably comprising from 8 to 22 carbon atoms. This fatty acid may be chosen in particular from palmitic acid, stearic acid, myristic acid and lauric acid, and mixtures thereof.

Examples of basic agents that may be used include alkali metal hydroxides (sodium hydroxide and potassium hydroxide), alkaline-earth metal hydroxides (for example magnesium hydroxide), ammonium hydroxide or else organic bases, such as triethanolamine, N-methylglucamine, lysine and arginine.

The soaps may especially be fatty acid alkali metal salts, the basic agent being an alkali metal hydroxide and preferably potassium hydroxide (KOH).

The amount of basic agent must be sufficient for the fatty acid to be at least partially neutralized.

Carboxylates that may especially be mentioned include alkyi glycol carboxylic acids (or 2- (2-hydroxyalkyloxyacetic acids)) and salts thereof, for instance sodium lauryl glycol carboxylate, sold under the names Beaulight Shaa^® or Beaulight LCA-25N^® by the company Sanyo (CTFA name: sodium lauryl glycol carboxylate), or its corresponding acid form sold under the name Beaulight Shaa (Acid Form)^® by the company Sanyo.

Non-oxyalkylenated alkyi sulfosuccinates that may be mentioned include lauryl alcohol sulfosuccinates (70/30 C12/C14) (disodium lauryl sulfosuccinate) such as the products sold under the name Rewopol® SB F 12 P by the company Evonik Goldschmidt, Kohacool L-40 by the company Toho Chemical, or Mackanate LO-FF by the company Rhodia. Oxyalkylenated sulfosuccinates that may be mentioned include oxyethylenated lauryl alcohol sulfosuccinates (70/30 C12/C14) (Disodium laureth sulfosuccinate) such as the products sold under the names Setacin 103 Special NP® by the company Zschimmer&Schwarz, Rewopol SB FA 30 U by the company Evonik Goldschmidt, Goodway MES by the company Shanghai Goodway Chemical, Rewopol SB FA 30 PH by the company Evonik Goldschmidt, Alkonix SS K by the company Ultra-Oxiteno, Disodium laureth sulfosuccinate by the company Guangzhou Flower's Song Fine Chemical, Kohacool L-300 by the company Toho Chemical, Empicol SDD OF by the company Huntsman, the disodium salt of a hemisulfosuccinate of C12-C14 alcohols, sold under the name Setacin F Special Paste® by the company Zschimmer & Schwarz, the oxyethylenated (2 OE) disodium oleamidosulfosuccinate sold under the name Standapol SH 135® by the company Cognis, the oxyethylenated (5 OE) laurylamide monosulfosuccinate sold under the name Lebon A-5000® by the company Sanyo, the oxyethylenated (10 OE) disodium salt of lauryl citrate monosulfosuccinate sold under the name Rewopol SB CS 50® by the company Witco, and the ricinoleic monoethanolamide monosulfosuccinate sold under the name Rewoderm S 1333® by the company Witco. Polydimethylsiloxane sulfosuccinates may also be used, such as the disodium PEG-12 dimethicone sulfosuccinate sold under the name Mackanate- DC30® by the company Maclntyre.

Examples of acylamino acids that may be mentioned include sodium cocoylglycinate sold by the company Ajinomoto under the name Amilite GCS 12, sodium lauroyl glutamate sold by the company Ajinomoto under the name Amisoft LS1 1 and sodium lauroyl sarcosinate sold by the company SEPPIC under the name Oramix L30.

An example of an alkyl phosphate that may be mentioned is lauryl phosphate, sold by the company Kao under the name MAP 20.

The alkyl radical of the alkyl sulfoacetate(s) comprises from 8 to 30 carbon atoms, preferably from 10 to 18 carbon atoms, even more preferentially from 10 to 16 carbon atoms and better still from 10 to 14 carbon atoms.

According to a particular embodiment, the alkyl sulfoacetate(s) correspond to formula (I) below:

MS0₃-CH2-CO-0-(CH₂)x-CH3

in which:

x denotes an integer ranging from 7 to 29, preferably from 9 to 17, even more preferentially from 9 to 15 and preferably from 9 to 13;

M denotes a hydrogen atom, an alkali metal, an alkaline-earth metal, an ammonium group or a cation derived from an amine. When the alkyl sulfoacetate(s) are in salt form, they may be chosen from alkali metal salts such as the sodium or potassium salt and preferably the sodium salt, ammonium salts, amine salts and in particular amino alcohol salts, or alkaline-earth metal salts such as magnesium salts.

According to a particular embodiment of the invention, the alkyl sulfoacetate(s) are in salt form. Preferably, they are chosen from alkali metal salts and more particularly the sodium salt.

According to a particular embodiment of the invention, the anionic surfactant chosen from alkyl sulfoacetates is sodium lauryl sulfoacetate, such as the product sold under the name Lathanol LAL by the company Stepan.

The fatty acid sulfonates and fatty acid ester sulfonates that may then be used in the context of the invention comprise an alkyl radical containing 8 to 30 carbon atoms, preferably from 10 to 18 carbon atoms, even more preferentially from 10 to 16 carbon atoms and better still from 10 to 14 carbon atoms.

According to a particular embodiment, the fatty acid sulfonates or fatty acid ester sulfonates correspond to formula (III) below:

CH3-(CH₂)x-CH(S0₃M)-CO-0-Y

in which:

x denotes an integer ranging from 7 to 29, preferably from 9 to 17, even more preferentially from 9 to 15 and better still from 9 to 13;

M denotes a hydrogen atom, an alkali metal, an alkaline-earth metal, an ammonium group or a cation derived from an amine,

Y represents a hydrogen atom, a C1-C4 alkyl radical such as a methyl or ethyl radical, or an alkali metal or alkaline-earth metal.

When the sulfonate function of the fatty acid sulfonate(s) or fatty acid ester sulfonate(s) is in salt form, it may be chosen from alkali metal salts such as the sodium or potassium salt and preferably the sodium salt, ammonium salts, amine salts and in particular amino alcohol salts or alkaline-earth metal salts such as the magnesium salts.

According to a particular embodiment of the invention, the sulfonate function of the fatty acid sulfonate(s) or fatty acid ester sulfonate(s) is in salt form. Preferably, they are chosen from the salts of alkali metals and even more particularly the sodium salt.

According to a particular embodiment, the fatty acid sulfonate(s) or fatty acid ester sulfonate(s) used in the context of the invention are derived from lauric acid. Mention may be made especially of sodium 2-methyl sulfolaurate (INCI name: Sodium methyl-2 sulfolaurate) and disodium 2-sulfolaurate (INCI name: Disodium 2-sulfolaurate), used alone or as a mixture. According to a particular embodiment, they are fatty acid sulfonates and Y represents a hydrogen atom, an alkali metal or an alkaline-earth metal.

According to another particular embodiment, they are fatty acid ester sulfonates and Y represents a C1-C4 alkyl radical such as a methyl or ethyl radical.

The amount of anionic surfactants (as active material) preferably ranges from 0.1 % to 15% by weight, better still from 0.5% to 10% by weight and even better still from 0.5% to 5% by weight relative to the total weight of the composition. b) Nonionic surfactants

The composition according to the invention may also comprise a nonionic surfactant chosen, for example, from maltose esters, polyglycerolated fatty alcohols, and glucamine derivatives such as 2-ethylhexyloxycarbonyl-N-methylglucamine, and mixtures thereof. The maltose derivatives are, for example, those described in document EP-A-566 438, such as 0-octanoyl-6'-D-maltose or 0-dodecanoyl-6'-D-maltose described in document FR-2 739 556.

Among the polyglycerolated fatty alcohols that may be mentioned is polyglycerolated dodecanediol (3.5 mol of glycerol), this product being sold under the name Chimexane NF® by the company Chimex.

Nonionic surfactants that may also be used include PEG-120 methylglucose dioleate, for instance Glucamate DOE 120 from the company Noveon or PEG-150 pentaerythrityl tetrastearate, for instance Crothix from the company Croda.

The amount of nonionic surfactants (as active material) preferably ranges from 0.1 % to 10% by weight, better still from 1 % to 5% by weight and even better still from 1 % to 3% by weight relative to the total weight of the composition.

According to a particular embodiment of the invention, the total amount of surfactant active material in the composition is between 1 % and 40% by weight, preferably between 3% and 35% by weight, even more preferentially between 5% and 30% by weight and better still between 7% and 20% by weight relative to the total weight of the composition.

Polvol(s)

Polyols are defined as being organic molecules comprising at least two hydroxyl (OH) functions.

For the purposes of the invention, the term "polyol" means a linear, saturated or unsaturated, branched or unbranched hydrocarbon-based chain comprising at least two hydroxyl functions. For example, the hydrocarbon-based chain is an alkyl radical. According to a particular embodiment of the invention, the polyol(s) present in the composition contain at least 4 carbon atoms and may be chosen especially from C4-C9 and preferably C4-C6 polyols.

Among the C4-C9 polyols, mention may be made especially of 2-butene-1 ,4-diol, pentane- 1 ,5-diol, 2,2-dimethylpropane-1 ,3-diol, 3-methylpentane-1 ,5-diol, pentane-1 ,2-diol, 2,2,4- trimethylpentane-1 ,3-diol, 2-methylpropane-1 ,3-diol, hexylene glycol, 1 ,3-butylene glycol, dipropylene glycol, diethylene glycol and triethylene glycol.

According to a preferred embodiment, the polyol(s) are molecules of empirical formula CnHmOp in which the numbers n, m and p are integers with n being between 4 and 6, m being between 8 and 14 and p being between 2 and 5.

An example that may especially be mentioned is pentane-1 ,2-diol sold under the name Pentiol Green + by the company Minasolve.

According to a particular embodiment of the invention, the mass concentration of polyols is between 0.01 % and 10% by weight, preferably between 0.1 % and 5% by weight and even more preferentially between 0.2% and 2% by weight, relative to the total weight of the composition.

Organic acids

The composition in accordance with the invention comprises at least one organic acid. According to a particular embodiment of the invention, the organic monoacid(s) are monocarboxylic acids, the acid radical being a carboxylic acid radical -COOH.

According to another particular embodiment of the invention, the organic acid(s) are monoacids, i.e. organic compounds comprising only one acid radical.

According to a preferred embodiment, the monoacid(s) are chosen from the compounds of formula (II) below, stereoisomers thereof, organic or mineral salts and the corresponding solvates:

in which R represents a linear, branched or cyclic alkyl radical comprising from 1 to 10 carbon atoms, a linear, branched or cyclic alkenyl radical comprising from 2 to 10 carbon atoms or an aryl or aralkyl group comprising from 6 to 10 carbon atoms, these groups being optionally substituted with one or more groups chosen from hydroxyl groups and C1 -C4 alkoxy groups. Preferably, the organic acid(s) present in the composition are chosen from the compounds of formula C_xH_yO_z in which the numbers x, y and z are integers with x between 6 and 9, y between 5 and 9 and z between 2 and 4.

Examples that may be mentioned include:

- salicylic acid sold under the name Salicylic Acid Pharmaceutical Grade USP, ph. Eur by the company Novacyl,

- benzoic acid sold under the name Purox B Flakes Pure Grade Benzoic Acid by the company Emerald Performance Materials,

- anisic acid sold under the name Ronacare 4-Methoxybenzoic Acid by the company Merck, - levulinic acid sold under the name Dermosoft 700 B by the company Lucas Meyer

Cosmetics,

- sorbic acid sold under the name Sorbic Acid by the company Daicel.

According to a preferred embodiment of the invention, the organic acid is salicylic acid. The organic acid(s) are present in the composition in a mass concentration of between 0.1 % and 1 %, preferably between 0.2% and 0.6% by weight relative to the total weight of the composition.

Aqueous phase

The composition according to the invention comprises an aqueous phase.

According to a particular embodiment, the composition in accordance with the invention comprises an amount of water of between 65% and 95% by weight, preferably between 70% and 90% by weight, and better still between 75% and 85% by weight relative to the total weight of the composition.

The water used may be sterile demineralized water and/or a floral water such as rose water, cornflower water, camomile water or lime blossom water, and/or a natural spring water or mineral water, for instance: Vittel water, Vichy basin water, Uriage water, Roche Posay water, Bourboule water, Enghien-les-Bains water, Saint Gervais-les-Bains water, Neris-les- Bains water, Allevar-les-Bains water, Digne water, Maizieres water, Neyrac-les-Bains water, Lons-le-Saunier water, Eaux Bonnes water, Rochefort water, Saint Christau water, Fumades water, Tercis-les-bains water and Avene water. The aqueous phase may also comprise reconstituted spring water, i.e. a water containing trace elements such as zinc, copper, magnesium, etc., reconstituting the characteristics of a spring water.

The aqueous (or hydrophilic) phase of the composition according to the invention may also contain any water-soluble or water-dispersible additive. As water-soluble additives, mention may be made especially of polyols other than those defined previously, for instance glycerol and propylene glycol. Water-soluble additives that may also be mentioned include primary alcohols, i.e. an alcohol comprising from 1 to 6 carbon atoms, such as ethanol and isopropanol. It is preferably ethanol. The addition of such an alcohol may especially be suitable when the composition according to the invention is used as a product for the body or the hair.

The amount of water-soluble or water-dispersible additives in the composition of the invention may range, for example, from 0 to 50% by weight, preferably from 0.5% to 30% by weight and even more preferentially from 2% to 20% by weight, relative to the total weight of the composition. The compositions of the invention may contain adjuvants normally used in the cosmetics field and especially those used in cleansing products. Examples of adjuvants that may be mentioned include fragrances, preserving agents, sequestrants (EDTA), pigments, nacres, mineral or organic, matt-effect, whitening or exfoliant fillers, soluble dyes, sunscreens, cosmetic or dermatological active agents such as water-soluble or liposoluble vitamins, antiseptics, antiseborrheic agents, antimicrobials, such as benzoyl peroxide, triclosan, azelaic acid, and also optical brighteners, nonionic polymers, such as polyvinylpyrrolidone (PVP), anionic polymers, conditioning amphoteric polymers such as Polyquaternium products, for instance Polyquaternium-47 sold under the reference Merquat 2001 by the company Nalco, and fatty substances that are incompatible with the aqueous medium, for instance oils and waxes. The amounts of these various adjuvants are those conventionally used in the field under consideration, for example from 0.01 % to 25% of the total weight of the composition. These adjuvants and the concentrations thereof should be such that they do not modify the property desired for the composition of the invention. Active agents that may be mentioned include any care or cleansing active agent usually used in cosmetics, and in particular antibacterial agents such as octopirox and triclosan, keratolytic agents such as lactic acid or glycolic acid, salicylic acid derivatives such as 5-n- octanoylsalicylic acid, essential oils, fruit waters (for example from apple or grape) or floral waters (for example rose water), plant extracts (especially from tea, mint, orchid, soybean, Aloe vera or honey), mineral salts (for example zinc or copper salts), vitamins such as vitamin C (ascorbic acid), vitamin A (retinol), vitamin E, vitamin PP (niacinamide) and vitamin B3 (panthenol), and derivatives thereof.

Fillers that may be mentioned include mineral fillers such as talc or magnesium silicate (particle size: 5 microns) sold under the name Luzenac 15 M00® by the company Luzenac, kaolin or aluminum silicate, for instance the product sold under the name Kaolin Supreme® by the company Imerys, or organic fillers such as starch, for instance the product sold under the name Amidon de Ma^'i^'s B® by the company Roquette, Nylon microspheres such as those sold under the name Orgasol 2002 UD Nat Cos® by the company Atochem, microspheres based on expanded vinylidene chloride/acrylonitrile/methacrylonitrile copolymer containing isobutane, such as the products sold under the name Expancel 551 DE® by the company Expancel. Fibers, for instance nylon fibers (Polyamide 0.9 Dtex 0.3 mm sold by Etablissements Paul Bonte), or cellulose or "Rayon" fibers (Rayon Flock RCISE N0003 M04® sold by the company Claremont Flock Corporation), may also be added to the composition of the invention. According to a particular embodiment, the composition according to the invention contains, as fillers, exfoliant particles that will allow scrubbing of the skin. Use may be made, as exfoliant particles, of exfoliant or scrubbing particles of mineral, vegetable or organic origins. Thus, it is possible to use, for example, perlites, such as those sold under the names Imercare 270P-Scrub and Imercare 400P-Scrub by the company IMERYS, polyethylene beads or powder, such as those sold under the name Microthene MN 727 or Microthene MN 710-20 by the company Equistar or such as the powder sold under the name Gotalene 120 lncolore 2 by the company Dupont; Nylon particles, such as those sold by the company Arkema under the name Orgasol 2002 Exd Nat Cos; fibers such as polyamide fibers, such as those sold by the company Utexbel under the name Pulpe Polyamide 12185 Taille 0.3 mm; polyvinyl chloride powder; pumice stone (INCI name: pumice) such as pumice 3/B from Eyraud; ground shells of fruit kernels, such as ground apricot kernels or walnut shells; sawdust; glass beads; alumina (aluminum oxide) (INCI name: Alumina), such as the product sold under the name Dermagrain 900 by the company Marketech International; sugar crystals; beads which melt during application on the skin, for instance the spheres based on mannitol and cellulose sold under the Unispheres names by the company Induchem, the agar-based capsules sold under the Primasponge names by the company Cognis and the spheres based on jojoba esters sold under the Floraspheres names by the company Floratech; diatomaceous earth frustules such as those sold by the company Alban Muller under the reference Diatami 60/200 microns, and polyethylene wax particles, for instance those sold by the company Sasol under the name Cirebelle.

The filler(s) and/or the exfoliating particle(s) are generally present in the composition in concentrations ranging from 0.01 % to 10% by weight, preferably from 0.1 % to 5% by weight and even more preferentially from 0.5% to 3% by weight relative to the total weight of the composition.

According to a preferred embodiment, the composition according to the invention comprises perlite particles. The perlites that may be used in the context of the invention may be expanded perlites. They are generally aluminosilicates of volcanic origin and their composition is as follows: 70.0-75.0% by weight of silica Si0₂;

12.0-15.0% by weight of oxide of aluminum oxide AI2O3;

3.0-5.0% of sodium oxide Na20;

3.0-5.0% of potassium oxide K2O;

0.5-2% of iron oxide Fe2C>3;

0.2-0.7% of magnesium oxide MgO;

0.5-1 .5% of calcium oxide CaO;

0.05-0.15% of titanium oxide Ti0₂.

The perlite is ground, dried and then sized in a first step. The product obtained, known as perlite ore, is gray-colored and has a size of the order of 100 μηη.

The perlite ore may then be expanded (1000°C/2 seconds) to give more or less white particles. When the temperature reaches 850-900°C, the water trapped in the structure of the material evaporates and brings about the expansion of the material, relative to its original volume. The expanded perlite particles that may be used in the context of the invention may be obtained via the expansion process described in patent US 5 002 698. According to one particular embodiment of the invention, the expanded perlite particles used are ground; in this case, they are known as Expanded Milled Perlite (EMP). They preferably have a particle size defined by a median diameter D₅o ranging from 0.5 to 1000 μηη, preferably from 10 to 800 μηη and even more preferentially from 100 to 500 μηη.

D₅o is the mean volume size of 50% of the particles and is measured at 25°C by laser scattering with a machine such as a Malvern Mastersizer.

Examples that may be mentioned include the perlites sold under the names lmercare 270P- Scrub and Imercare 400P-Scrub by the company Imerys.

In this preferred embodiment, the perlite particles are generally present in the composition in concentrations ranging from 0.01 % to 10% by weight, preferably from 0.1 % to 5% by weight and even more preferentially from 0.5% to 3% by weight relative to the total weight of the composition.

The compositions according to the invention may especially constitute cleansing or makeup- removing products for the skin (body, face, eyes), the scalp and/or the hair, preferably products for cleansing or removing makeup from the skin (body, face, eyes).

Another subject of the invention is a process for cleansing or for removing makeup from keratin materials such as the skin, including the scalp, keratin fibers such as the eyelashes or the hair, and/or the lips, characterized in that a cosmetic composition as defined above is applied to said keratin materials. According to a particular embodiment, it is a process for cleansing or removing makeup from the skin.

Another subject of the invention consists of the cosmetic use of the composition as defined above, as products for cleansing and/or removing makeup from keratin materials.

The compositions according to the invention may also constitute a composition for treating greasy skin and/or for disinfecting the skin and/or the scalp, especially when they contain an antibacterial agent. In particular, specific active agents for treating greasy skin may be included, for instance azelaic acid, triclosan, piroctone olamine or niacinamide (vitamin PP). Another subject of the invention is the use of the composition as defined above for the preparation of a composition for treating greasy skin and/or for disinfecting the skin and/or the scalp.

Another subject of the invention consists of a cosmetic process for cleansing keratin materials, in which the composition of the invention is applied to keratin materials in the presence of water, and the foam formed and the soiling residues are removed by rinsing with water.

In the case of cleansing the face, the composition according to the invention may constitute a mask which is rinsed off after a leave-on time of 1 to 3 minutes. The examples that follow serve to illustrate the invention without, however, being limiting in nature. The amounts indicated are weight percentages of starting material (SM) and/or of active material (AM).

Examples

The following compositions were made.

Preparation method:

The compositions defined above are prepared at room temperature by mixing and dissolving the various ingredients with stirring in the following order: water + citric acid and sodium chloride, followed by addition of the glycerol, the natural extract and the fragrance, and finally the surfactants sodium lauryl sulfate, cocoyi glucoside and cocoyi betaine, if used.

Results:

Compositions 1 and 2 are homogeneous and transparent and meet the desired target viscosity. The viscosity of composition 3 is too low, outside the desired viscosity range for the compositions of the invention.

These results show that only the compositions comprising an alkyl sulfate derivative and an alkyl polyglucoside in an [Alkyl Sulfate]/[Alkyl polyglucoside] mass concentration ratio of between 0.5 and 2.5, a polyol and an organic acid are stable, transparent and have a viscosity of between 0.5 and 5 Pa.s without addition of a thickening polymer. These compositions moreover have good foam quality and good sensory properties on the skin especially after rinsing.

For comparative composition 3 not satisfying the [Alkyl Sulfate]/[Alkyl polyglucoside] surfactant ratio defined for the present invention, the viscosity level does not meet the desired target (viscosity of between 0.5 and 5 Pa.s). The working qualities, especially on application, are not optimized since the composition is too fluid.

For comparative composition 4 not satisfying the [Alkyl Sulfate]/[Alkyl polyglucoside] surfactant ratio defined for the present invention, the viscosity level does not meet the desired target (viscosity of between 0.5 and 5 Pa.s). The working qualities, especially on application, are not optimized since the composition is too fluid. Moreover, the level of transparency does not meet the desired target either (transparency of between 0 and 50 NTU).

Claims

1 . A foaming cleansing composition in the form of an aqueous gel comprising at least one anionic surfactant chosen from alkyl sulfate derivatives, at least one nonionic surfactant chosen from alkyl polyglucosides, at least one polyol and at least one organic acid, the mass ratio of alkyl sulfate derivatives/alkyl polyglucosides being between 0.5 and 2.5, preferably between 0.8 and 1 .3 and even more preferentially between 0.9 and 1 .2.

2. The composition as claimed in claim 1 , which is transparent with a turbidity value at room temperature and at atmospheric pressure of less than or equal to 200 NTU units, better still less than or equal to 100 NTU units, preferentially less than or equal to 50 NTU units, in particular between 0 and 50 NTU.

3. The composition as claimed in either of claims 1 and 2, the viscosity of which is between 0.5 and 5 Pa.s, preferably between 0.65 and 2 Pa.s and even more preferentially between

0.8 and 1.2 Pa.s at a temperature of 25°C.

4. The composition as claimed in any one of claims 1 to 3, which is free of thickening polymer.

5. The composition as claimed in any one of claims 1 to 4, in which the alkyl sulfate derivative(s) are chosen from the following compounds: alkyl sulfates, alkyl ether sulfates, alkylamido ether sulfates, alkylarylpolyether sulfates, and mixtures thereof; and the salts of these compounds; the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, especially from 8 to 16 and better still from 10 to 14 carbon atoms; the aryl group preferably denoting a phenyl or benzyl group; these compounds may be polyoxyethylenated and then preferably comprise from 1 to 50 ethylene oxide units, better from 2 to 10 ethylene oxide units.

6. The composition as claimed in any one of claims 1 to 5, in which the alkyl sulfate derivative(s) are chosen from (C8-C24)alkyl sulfates, preferably (C10-C20)alkyl sulfates; in particular in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts, and preferably in the form of alkali metal or alkaline-earth metal, ammonium or amino alcohol salts; preferably, the alkyl sulfate derivative(s) are chosen from alkali metal or alkaline-earth metal salts of lauryl sulfate, and even more preferentially it is sodium lauryl sulfate.

7. The composition as claimed in any one of claims 1 to 6, in which the alkyl polyglycoside(s) correspond to formula (I) below:

in which:

the group G is a saccharide residue;

a is a number ranging from 1 to 10, preferably from 1 to 5 and especially from 1.2 to 3.

8. The composition as claimed in claim 7, in which the saccharide residue is chosen from glucose, dextrose, saccharose, fructose, galactose, maltose, maltotriose, lactose, cellobiose, mannose, ribose, dextran, talose, allose, xylose, levoglucan, cellulose and starch, and is preferably glucose.

9. The composition as claimed in any one of claims 1 to 8, in which the alkyl polyglucoside(s) are chosen from decyl glucoside, lauryl glucoside and cocoyl glucoside, preferably from decyl glucoside and cocoyl glucoside, and is even more preferentially cocoyl glucoside.

10. The composition as claimed in any one of claims 1 to 9, which is free of additional surfactants other than the alkyl sulfate derivatives and the alkyl polyglucosides.

1 1. The composition as claimed in any one of claims 1 to 10, in which the polyol(s) contain at least 4 carbon atoms and may be chosen especially from C4-C9 and preferably C4-C6 polyols.

12. The composition as claimed in any one of claims 1 to 1 1 , in which the polyol(s) are chosen from 2-butene-1 ,4-diol, pentane-1 ,5-diol, 2,2-dimethylpropane-1 ,3-diol, 3- methylpentane-1 ,5-diol, pentane-1 ,2-diol, 2,2,4-trimethylpentane-1 ,3-diol, 2- methylpropane-1 ,3-diol, hexylene glycol, 1 ,3-butylene glycol, dipropylene glycol, diethylene glycol and triethylene glycol, and it is preferably pentane-1 ,2-diol.

13. The composition as claimed in any one of claims 1 to 12, in which the polyol(s) are molecules of empirical formula C_nH_mOp in which the numbers n, m and p are integers with n being between 4 and 6, m being between 8 and 14 and p being between 2 and 5.

14. The composition as claimed in any one of claims 1 to 13, in which the organic monoacid(s) are monocarboxylic acids, the acid radical being a carboxylic acid radical -COOH.

15. The composition as claimed in any one of claims 1 to 14, in which the monoacid(s) are chosen from the compounds of formula (II) below, stereoisomers thereof, organic or mineral salts and the corresponding solvates:

in which R represents a linear, branched or cyclic alkyl radical comprising from 1 to 10 carbon atoms, a linear, branched or cyclic alkenyl radical comprising from 2 to 10 carbon atoms or an aryl or aralkyl group comprising from 6 to 10 carbon atoms, these groups being optionally substituted with one or more groups chosen from hydroxyl groups and C1 -C4 alkoxy groups.

16. The composition as claimed in any one of claims 1 to 15, in which the organic acid(s) are chosen from the compounds of formula C_xH_yO_z in which the numbers x, y and z are integers with x between 6 and 9, y between 5 and 9 and z between 2 and 4.

17. The composition as claimed in any one of claims 1 to 16, in which the organic acid(s) are chosen from salicylic acid, benzoic acid, anisic acid, levulinic acid and sorbic acid, and it is preferably salicylic acid.

18. The composition as claimed in any one of claims 1 to 17, comprising at least one alkyl betaine derivative.

19. The composition as claimed in claim 18, in which the alkyl betaine derivative(s) are alkyl betaines, the alkyl groups of these compounds comprising from 6 to 30 carbon atoms, especially from 8 to 16 and better still from 10 to 14 carbon atoms.

20. The composition as claimed in either of claims 18 and 19, in which the betaine derivative(s) are chosen from cocoyl betaine and lauryl betaine, and it is preferably cocoyl betaine.

21. The composition as claimed in any one of claims 18 to 20, which is free of additional surfactants other than the alkyl sulfate derivatives, the alkyl polyglucosides and the alkyl betaine derivatives.

22. The composition as claimed in any one of claims 1 to 21 , also comprising perlite particles.

23. A cosmetic process for cleansing and/or removing makeup from keratin materials, in which a composition as defined in one of claims 1 to 22 is applied to said keratin materials.

24. The use of a composition as defined in any one of claims 1 to 22, in the cosmetic or dermatological field, and in particular for caring for, protecting and/or making up keratin materials, especially bodily or facial skin, or for haircare, especially for cleansing and/or removing makeup from keratin materials.