composition for cleaning and / or caring for keratinous material

Abstract

Keratinous material cleansing and / or care composition. The present invention relates to a composition, preferably for cleansing and / or caring for keratinous material, comprising: a) from 0.6% by weight to 30% by weight of at least one alpha-hydroxy acid, relative to the total weight of the composition; and b) at least one selenium sulfide; and c) at least one cellulose. Figure for the abstract: none

Description

Title of the invention: Keratinous material cleaning and / or care composition. Technical field

[0001] The present invention relates to a cleansing and / or conditioning composition for keratinous material, preferably hair and scalp. The present invention also relates to a process for cleansing and / or conditioning the scalp and hair. STATE OF THE ART

[0002] The scalp is an epidermis that undergoes continuous renewal, like the rest of the skin tissue, and is rich in sebaceous glands. Normally, the scalp is renewed by an imperceptible and invisible shedding of superficial skin cells. However, excessive renewal of the cells in the stratum corneum of the scalp, for various reasons, can lead to the formation of large, thick patches of cells visible to the naked eye, known as "dandruff".

[0003] Dandruff is a chronic, frequent, and recurring condition that is socially debilitating due to its clearly unsightly appearance. These dandruff-related scalp conditions result from an alteration of the epidermis' barrier function. Furthermore, these conditions can cause sensations of itching or pruritus, leading to scratching behavior that exacerbates the appearance of dandruff.

[0004] Many cosmetic cleansing and / or skincare products containing keratinous material have been developed to include at least one anti-dandruff agent in order to address the aforementioned problems. However, it is often difficult for cosmetic products containing an anti-dandruff agent to maintain stability over time, particularly at high temperatures.

[0005] Therefore, there is a need for a keratinous material cleansing and / or care composition, which includes at least one anti-dandruff agent, and can provide improved stability over time even at high temperatures. Summary of the invention

[0006] The inventors have discovered that such a need can be satisfied by the composition according to the present invention.

[0007] According to a first aspect, the present invention proposes a composition, preferably for cleaning and / or caring for keratinous material, comprising: a. from 0.6% by weight to 30% by weight of at least one alpha-hydroxy acid, relative to the total weight of the composition; and b. at least one selenium sulfide; and c. at least one cellulose.

[0008] According to a second aspect, the present invention proposes the use of a cellulose to improve the stability of a composition comprising at least one anti-dandruff agent, in which the anti-dandruff agent comprises an alpha-hydroxy acid and / or a selenium sulfide, and optionally a beta-hydroxy acid and / or its derivatives.

[0009] According to a third aspect, the present invention proposes a process for cleaning and / or caring for keratinous material, preferably hair and scalp, comprising the following steps: a. the application of the composition as described above to a wet keratinous material; b. massaging the keratinous material for 2 seconds to 120 seconds; and c. rinsing the keratinous material with water.

[0010] The inventors have discovered that the composition according to the present invention can provide improved stability over time even at a high temperature, for example at 50 °C for 5 days.

[0011] Other subjects and features, aspects and advantages of the present invention will become even clearer upon reading the detailed description and examples that follow. DETAILED DESCRIPTION OF THE INVENTION

[0012] In what follows and unless otherwise indicated, the limits of a range of values ​​are included in that range, in particular in the expressions "between...and..." and "from...to...".

[0013] The articles “a” and “an,” as used herein, mean one or more when applied to any particular feature in embodiments of the present invention described in the specification and the claims. The use of “a” and “an” does not limit the meaning to a single feature unless such a limitation is specifically stated. Furthermore, the expression “at least one” used in this description is equivalent to the expression “one or more.”

[0014] Throughout this application, the term "comprising" shall be interpreted as encompassing all the specifically mentioned features as well as optional, additional, unspecified features. As used herein, the use of the term "comprising" also discloses the embodiment in which no material features or even any features other than the specifically cited features are present (such as "essentially consisting of" or "consisting of"). In the case of "essentially consisting of," any composition, any additional material and / or component which materially affects the fundamental and new characteristics are excluded from such an embodiment, but any composition, any material and / or component which does not materially affect the fundamental and new characteristics may be included in the embodiment.

[0015] Unless otherwise specified, all numerical values ​​expressing a quantity of ingredients and other substances used in the description and claims shall be understood as being modified by the term "approximately". Accordingly, unless otherwise indicated, the numerical values ​​and parameters described herein are approximate values ​​that may be modified according to the desired performance as required. The term "approximately" referring to a certain value is intended to denote a range to within ±5% of the value, for example: within ±3%, ±2%, ±1%, and ±0.5% of the value.

[0016] As used herein, the expression "keratinous material(s)" refers to at least one material selected from hair, eyelashes, eyebrows, skin, nails, mucous membranes and scalp, and preferably hair and scalp.

[0017] For the purposes of the present invention, and unless otherwise indicated:

[0018] - an "alkyl" radical designates a linear or branched saturated radical containing, by for example, from 1 to 30 carbon atoms.

[0019] - an "alkenyl" radical designates a hydrocarbon group formed when an atom hydrogen is removed from an alkene group.

[0020] - an "alkoxy" radical designates an alkyl group attached to the parent molecule by an atom of oxygen (i.e., "-O-alkyl"), where "alkyl" is as defined above.

[0021] - a "heterocyclyl" radical designates a monovalent group derived from a chosen ring among monocyclic, bicyclic or polycyclic rings of 3 to 8 links, preferably of 4 to 6 links, saturated, partially unsaturated or totally unsaturated comprising at least one carbon atom in addition to 1, 2, 3 or 4 heteroatoms chosen from oxygen, sulfur and nitrogen.

[0022] - an "aryl" radical designates a monovalent hydrocarbon radical derived from a monocyclic, fused bicyclic or polycyclic (in which at least one ring contains a fully conjugated ir electron system) ring system with known aromatic characteristics. Alpha-hydroxy acid

[0023] The composition according to the present invention comprises from 0.6% by weight to 30% by weight of at least one alpha-hydroxy acid, relative to the total weight of the composition.

[0024] The term “alpha-hydroxy acid” is intended to mean, according to the present invention, a carboxylic acid having at least one hydroxyl functional group occupying an alpha position on said acid (carbon adjacent to a carboxylic acid functional group).

[0025] The alpha-hydroxy acid present in the composition according to the present invention includes, but is not limited to, glycolic acid, citric acid, lactic acid, methyllactic acid, glucuronic acid, 2-hydroxybutanoic acid, 2-hydroxypentanoic acid, 2-hydroxyhexanoic acid, 2-hydroxyheptanoic acid, 2-hydroxyoctanoic acid, 2-hydroxynonanoic acid, 2-hydroxydecanoic acid, 2-hydroxyundecanoic acid, 2-hydroxydodecanoic acid, 2-hydroxytetradecanoic acid, 2-hydroxyhexadecanoic acid, 2-hydroxyoctadecanoic acid, 2-hydroxytetracosanoic acid, 2-hydroxyeicosanoic acid, mandelic acid, phenyllactic acid, gluconic acid, galacturonic acid, ribonic acid, tartronic acid, tartaric acid, malic acid, fumaric acid, and mixtures thereof.

[0026] Preferably, the alpha-hydroxy acid is a lower acid having 2 to 12 carbon atoms, more preferably 2 to 8 carbon atoms, even more preferably 2 to 6 carbon atoms.

[0027] Suitable alpha-hydroxy acids include glycolic acid, lactic acid, tartaric acid, citric acid, gluconic acid, and their combinations.

[0028] Preferably, the alpha-hydroxy acid is a monocarboxylic acid.

[0029] More preferably, the alpha-hydroxy acid is a lower monocarboxylic acid having 2 to 8 carbon atoms, even more preferably 2 to 6 carbon atoms such as lactic acid.

[0030] The most preferable alpha-hydroxy acid is lactic acid, for example, that sold under the trade name L-LACTIC ACID (90%) (CRG) by the company MUSASHINO CHEMICAL LABORATORY, and that sold under the trade name L(4)-LACTIC ACID 90% HEAT STABLE PERSONAL CARE by the company JUNGBUNZLAUER.

[0031] Advantageously, the alpha-hydroxy acid is in an amount ranging from 0.6% by weight to 20% by weight, preferably from 0.6% by weight to 10% by weight, more preferably from 0.8% by weight to 8% by weight, and even more preferably from 1% by weight to 6% by weight, relative to the total weight of the composition. Selenium sulfide

[0032] The composition according to the present invention comprises at least one selenium sulfide (or selenium disulfide).

[0033] Selenium sulfide is a basic commercial product. Selenium sulfide is generally considered to be a compound containing one mole of selenium and two moles of sulfur. However, it can take the form of a cyclic structure, SexSy, in which x + y = 8. Since sulfur and selenium readily form rings and chains, selenium sulfide is not a pure chemical compound, but a mixture, for example a mixture of eight-membered cyclic compounds where the overall Se:S ratio is 1:2 (often abbreviated as SeS2).

[0034] Selenium sulfide is used to treat dandruff and certain scalp infections (seborrheic dermatitis). It reduces itching, irritation, and redness of the scalp.

[0035] According to the present invention, selenium sulfide is added as a raw material in powder form, the particles of which generally have a particle size (D90) of less than 200 µm, preferably less than 100 µm, preferably less than 150 µm, preferably less than 100 µm, preferably less than 50 µm, and more preferably less than 25 µm. For example, selenium sulfide, as a raw material, can have a particle size (D90) ranging from 1 µm to 24 µm, preferably from 3 µm to 15 µm, and more preferably from 5 µm to 10 µm, for example, 24 µm, 20 µm, 18 µm, 15 µm, 10 µm, 8 µm, 7 µm, 5 µm, 3 µm, 2 µm or 1 µm. For the purposes of the present invention, particle size (D90) corresponds to particle size defined such that 90% by volume of the particles have a size less than particle size (D90).Particle size can be measured by a forward-scattering laser light device (e.g., a Malvem 3600 instrument).

[0036] A particularly preferable example of selenium sulfide is that sold under the trade name SELENIUM SULPHIDE EP / USP MICRONIZED by the company ESKAY FINE CHEMICALS.

[0037] Advantageously, selenium sulfide is present in an amount ranging from 0.001% by weight to 10% by weight, preferably from 0.005% by weight to 5% by weight, and more preferably from 0.01% by weight to 3% by weight, and even more preferably from 0.1% by weight to 2% by weight, relative to the total weight of the composition. Cellulose

[0038] The composition according to the present invention comprises at least one cellulose.

[0039] As used herein, the term "cellulose" is intended to designate any polysaccharide compound having in its structure sequences of glucose residues linked together via beta-1,4 bonds. Cellulose may be unsubstituted or substituted. Furthermore, cellulose may be anionic, cationic, amphoteric, or nonionic.

[0040] Preferably, the cellulose used according to the invention is chosen from unsubstituted celluloses, including those in microcrystalline form; cellulose esters; cellulose ethers; cellulose ester ethers; and mixtures thereof.

[0041] Cellulose esters include mineral cellulose esters (nitrates, sulfates, phosphates of cellulose, etc.), organic cellulose esters (monoacetates, triacetates, amidopropionates, acetate butyrates, acetate propionates and acetate trimellitates of cellulose, etc.) and mixed organic / mineral cellulose esters, such as acetate butyrate cellulose sulfates and acetate propionate cellulose sulfates.

[0042] Cellulose ethers include nonionic cellulose ethers, anionic cellulose ethers and cationic cellulose ethers.

[0043] Among the nonionic cellulose ethers, examples include (Ci-C4)alkylcelluloses, such as methylcelluloses and ethylcelluloses (e.g., Ethocel Standard 100 Premium from Dow Chemical); (poly)hydroxy(Ci-C4)alkylcelluloses, such as hydroxymethylcelluloses, hydroxyethylcelluloses (e.g., Natrosol 250 HHR supplied by Ashland) and hydroxypropylcelluloses (e.g., Klucel EF from Aqualon); mixed (poly)hydroxy(Ci-C4)alkyl(Ci-C4)alkylcelluloses, such as hydroxypropylmethylcelluloses (e.g., Methocel E4M from Dow Chemical), hydroxyethylmethylcelluloses, hydroxyethylethylcelluloses (e.g., Bermocoll 20 E 481 FQ from Akzo Nobel) and hydroxybutylmethylcelluloses.

[0044] Among anionic cellulosic ethers, (poly)carboxy(C1-C4)alkylcelluloses and their salts may be mentioned. By way of example, carboxymethylcelluloses (for example Blanose 7M from Aqualon) and carboxymethylhydroxyethylcelluloses, and their sodium salts, may be cited.

[0045] Among cationic cellulose ethers, cationic cellulose derivatives such as cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer, and described in particular in US patent 4,131,576, such as (poly)hydroxy(Ci-C4)alkyl celluloses, for example hydroxymethyl, hydroxyethyl or hydroxypropylcelluloses grafted in particular with a salt of methacryloylethyltrimethylammonium, methacrylamidopropyltrimethylammonium or dimethyldiallylammonium, may be cited.

[0046] Among the cellulose ester ethers, we can mention hydroxypropyl methylcellulose phthalates and ethylcellulose sulfates.

[0047] According to the present invention, the cellulose is preferably chosen from unsubstituted celluloses, cellulose esters, cellulose ethers, cellulose ester ethers, and mixtures thereof, more preferably chosen from unsubstituted celluloses.

[0048] Advantageously, the cellulose is present in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.05% by weight to 5% by weight, and more preferably from 0.1% by weight to 1% by weight, relative to the total weight of the composition. Beta-hydroxy acid and / or its derivatives

[0049] According to the present invention, the composition may further comprise at least one beta-hydroxy acid and / or its derivatives.

[0050] The term "beta-hydroxy acid" means, according to the present invention, a carboxylic acid having a hydroxyl functional group and a carboxylic functional group separated by two carbon atoms.

[0051] Preferably, the "derived" in the expression "beta-hydroxy acid and / or its derivatives" means that the hydroxyl functional group of the beta-hydroxy acid, rather than the carboxylic functional group, is derived and preferably acylated.

[0052] Preferably, the beta-hydroxy acid and / or its derivatives are chosen from salicylic acid, its derivatives acylated on the hydroxyl group, and its derivative of the following formula (I):

[0053] wherein, R represents a linear, branched or cyclic saturated aliphatic group or an unsaturated aliphatic group containing one or a number of double bonds, which may or may not be conjugated, these groups containing from 2 to 22, preferably from 3 to 11 carbon atoms and being optionally substituted by at least one substituent selected from (a) halogen atoms, (b) the trifluoromethyl group, (c) hydroxyl groups in free form or esterified by an acid having from 1 to 6 carbon atoms or (d) a carboxyl functional group which is free or esterified by a lower alcohol having from 1 to 6 carbon atoms;

[0054] R' represents a hydroxyl group or an ester functional group of the following formula (II): ---O--G— Rj (II) II O

[0055] wherein Ri is a saturated or unsaturated, linear or branched aliphatic group having from 1 to 18 carbon atoms, preferably from 4 to 15 carbon atoms.

[0056] More preferably, the beta-hydroxy acid and / or its derivatives is / are that having a salicylic fraction, including salicylic acid, acetylsalicylic acid, capryloylsalicylic acid, 5-n-decanoylsalicylic acid, 5-n-dodecanoylsalicylic acid, 5-propanoylsalicylic acid, 5-n-hexadecanoylsalicylic acid, 5-n-oleoylsalicylic acid and their mixtures.

[0057] Non-limiting examples of other useful beta-hydroxy acids and / or their derivatives include 5-n-octylsalicylic acid, 5-n-heptyloxysalicylic acid, 4-n-heptyloxysalicylic acid, 5-tert-octylsalicylic acid, 3-tert-butyl-5-methylsalicylic acid, 3-tert-butyl-6-methylsalicylic acid, 3,5-diisopropylsalicylic acid, 5-butoxysalicylic acid, 5-octyloxysalicylic acid, 5-benzoylsalicylic acid, beta-hydroxypropionic acid, beta-hydroxybutyric acid, beta-hydroxybeta-methylbutyric acid, camitine, lipohydroxy acid, 3-hydroxyvaleric acid, and their mixtures.

[0058] According to the present invention, the beta-hydroxy acid and / or its derivatives are preferably particularly chosen from salicylic acid, acetylsalicylic acid, capryloyl salicylic acid, and mixtures thereof, and are more preferably from salicylic acid.

[0059] A particularly preferable beta-hydroxy acid and / or its derivatives are salicylic acid, for example, that sold under the trade name AMIPRESERVE by the company ALBAN MULLER (CRODA), and that sold under the trade name SALICYLIC ACID USP by the company CELLMARK.

[0060] Advantageously, the beta-hydroxy acid and / or its derivatives is / are present in an amount ranging from 0.05% by weight to 10% by weight, preferably from 0.1% by weight to 8% by weight, more preferably from 0.2% by weight to 6% by weight, and even more preferably from 0.2% by weight to 3% by weight, relative to the total weight of the composition. Anionic surfactant

[0061] According to the present invention, the composition may include at least one anionic surfactant.

[0062] In the present description, a species is said to be "anionic" when it carries at least one permanent negative charge or when it can be ionized into a negatively charged species, under the conditions of use of the composition of the invention (for example, the medium or the pH).

[0063] Preferably, the anionic surfactant is chosen from among the alkyl ether sulfates.

[0064] In some cases, alkyl ether sulfates include those corresponding to the following formula (III): (III)

[0065] in which R represents a hydrogen or an alkyl chain having 6 to 24 carbon atoms, preferably an alkyl chain having 8 to 18 carbon atoms, and more preferably an alkyl chain having 12 to 18 carbon atoms, said alkyl chain being saturated or unsaturated, linear or branched, substituted or unsubstituted;

[0066] M represents a solubilizing cation such as alkali metal ions, for example sodium or potassium ions, ammonium or substituted ammonium ions, or alkanolammonium ions, for example monoethanolammonium or triethanolammonium ions; and

[0067] n is an integer from 0 to 3, preferably between 1 and 3, more preferably between 2 and 3.

[0068] Preferably, the anionic surfactant is sodium laureth sulfate, for example, that sold under the trade name EMAL 170S by the company KAO, or under the trade name KOPACOL N701 S RENU ULTRA / MB MASPHATE ES70 IM LD RSPO MB by the company KENSING PT MUSIM MAS.

[0069] Advantageously, the anionic surfactant is present in an amount ranging from 1% by weight to 30% by weight, preferably from 5% by weight to 25% by weight, and more preferably from 10% by weight to 20% by weight, relative to the total weight of the composition. Fatty amine

[0070] According to the present invention, the composition may comprise at least one fatty amine as a revitalizing agent. Two or more fatty amines may be used in combination. Thus, a single type of fatty amine or a combination of different types of fatty amines may be used.

[0071] The term "fatty amines" refers to primary, secondary, or tertiary fatty amines, which are optionally (poly)oxyalkylated, or their salts. Fatty amines generally comprise at least one C6-C30 hydrocarbon chain. Preferably, the fatty amines according to the present invention are not quantified. Preferably, the fatty amines according to the present invention are not (poly)oxyalkylated.

[0072] Preferably, the composition according to the present invention comprises at least one fatty amine comprising at least one C6-C30 hydrocarbon-based chain.

[0073] Preferably, the composition according to the present invention comprises at least one fatty amine selected from among the tertiary fatty amines.

[0074] More preferably, the composition according to the present invention comprises one or more tertiary fatty amines selected from among the amidoamines.

[0075] Amidoamines are a class of chemical compounds formed from fatty acids and diamines. Non-limiting examples of amidoamines include those of the following formula (IV):

[0076] RCONHR'N(R")2(IV)

[0077] wherein R represents a hydrocarbon radical containing at least 6 carbon atoms, preferably from 6 to 30 carbon atoms, preferably from 8 to 24 carbon atoms, and in particular a C6-C30 hydrocarbon radical, preferably C8-C24, linear or branched, saturated or unsaturated and substituted or unsubstituted, preferably a C6-C30 alkyl radical, preferably C8-C24, linear or branched, or a C6-C30 alkenyl radical, preferably C8-C24, linear or branched; and R' represents a divalent hydrocarbon radical containing less than 6 carbon atoms, preferably from 1 to 4 carbon atoms, which may be linear or branched, saturated or unsaturated, and substituted or unsubstituted; and R" which may be identical or different, represents a hydrogen or hydrocarbon radical containing less than 6 carbon atoms, preferably 1 to 4 carbon atoms.Furthermore, R" can be linear or branched, acyclic or cyclic, saturated or unsaturated, substituted or unsubstituted. Preferably, R" is a linear or branched acyclic alkyl or alkenyl group. More preferably, R" is a hydrogen or methyl group.

[0078] Non-limiting examples of amidoamines include, but are not limited to, oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, stearamidoethyl dimethylamine, lauramidopropyl dimethylamine, myristamidopropyl dimethylamine, behenamidopropyl dimethylamine, dilinoleamidopropyl dimethylamine, palmitamidopropyl dimethylamine, ricinoleamidopropyl dimethylamine, sojamidopropyl dimethylamine, bleamidopropyl dimethylamine germ, toumesolamidopropyl dimethylamine, amandamidopropyl dimethylamine, avocatamidopropyl dimethylamine, babassuamidopropyl dimethylamine, cocamidopropyl dimethylamine, visonamidopropyl dimethylamine, avoinamidopropyl dimethylamine, sesamidopropyl dimethylamine, tallamidopropyl dimethylamine, brassicamidopropyl dimethylamine, olivamidopropyl dimethylamine, stearamidoethyl diethylamine, Stearamidopropyl diethylamine, palmitamidopropyl diethylamine, palmitamidoethyl diethylamine, palmitamidoethyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl diethylamine, behenamidoethyl dimethylamine, arachidamidopropyl dimethylamine, arachidamidoethyl diethylamine, arachidamidoethyl diethylamine, diethylaminoethylstearamide, and mixtures thereof. Preferably, the fatty amine is brassicamidopropyl dimethylamine.

[0079] Other suitable fatty amines include, but are not limited to, octylamine, decylamine, dodecylamine, stearylamine, stearyldimethylamine, and mixtures thereof.

[0080] A particularly preferable example of Brassicamidopropyl Dimethylamine is that sold under the trade name PROCONDITION 2 by INOLEX CHEMICAL COMPANY.

[0081] Advantageously, fat famine is present in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.01% by weight to 3% by weight, more preferably from 0.05% by weight to 2% by weight, and even more preferably from 0.1% by weight to 1% by weight, relative to the total weight of the composition. Compound containing nitrogen

[0082] The composition according to the present invention may comprise at least one nitrogen-containing compound corresponding to the following formula (V)

[0083] in which Rb R2, R3, R4 and R5, independently of each other, denote a radical chosen from:

[0084] - a hydrogen atom,

[0085] - a carboxyl group, and

[0086] - a linear C1-C6 or saturated or unsaturated C3-C6 branched alkyl group, which is optionally interrupted by one or more heteroatoms selected from O, S and N, and / or optionally substituted with one or more groups selected from amino, imino, amidino, guanidino, hydroxyl, sulfhydryl, carboxyl, amido, perfluoroalkyl in Ci-C6, alkoxy in Ci-C6> sulfate, phosphate, aryl and heterocyclyl, and

[0087] in which Ri and R4 optionally form a ring which contains 5 or 6 atoms chosen from carbon and nitrogen.

[0088] Preferably, RB R2, R3, R4 and R5, independently of each other, denote a radical chosen from:

[0089] - a hydrogen atom,

[0090] - a carboxyl group, and

[0091] - a linear C1-C6 or branched C3-C6 alkyl group, saturated or unsaturated, which is optionally interrupted by one or more heteroatoms selected from O, S and N, and / or optionally substituted with one or more groups selected from amino, imino, amidino, guanidino, hydroxyl, sulphydryl, carboxyl, amido, C1-C6 alkoxy, phenyl and heterocyclyl selected from pyrimidyl, piperidyl, morpholinyl, pyranyl, furyl, piperazinyl, pyridyl, imidazolyl and indolyl, and

[0092] in which Ri and R4 optionally form a ring which contains 5 or 6 atoms chosen from carbon or nitrogen.

[0093] According to the present invention, the nitrogen-containing compound may have a molecular weight less than 500, preferably less than 400, and more preferably less than 250.

[0094] Non-limiting examples of the nitrogen-containing compound include, but are not limited to, arginine, including L-arginine, trolamine, diethanolamine, L-alanine, L-asparagine, L-aspartate, L-cysteine, L-glutamate, L-glutamine, L-glycine, L-histidine, L-isoleucine, L-leucine, L-lysine, L-methionine, L-phenylalanine, L-proline, L-serine, L-threonine, L-tryptophan, L-tyrosine, L-valine, tris(hydroxymethyl)aminomethane, ethanolamine, diethanolamine, monoisopropanolamine, diisopropanolamine, N-dimethylaminoethanolamine, triisopropanolamine, 3-Isopropoxypropylamine, 3-methoxypropylamine (3-MPA), 3-ethoxypropylamine, 3-(2-ethylhexyloxy)-propylamine, 2-(2-aminoethoxy)ethanol (2-2AEE), 3-butoxypropylamine (3-BPA) and monoethanolamine (MEA), and mixtures thereof.

[0095] Preferably, the nitrogen-containing compound is chosen from the group consisting of L-arginine, trolamine, tris(hydroxymethyl)aminomethane, ethanolamine, diethanolamine, and mixtures thereof, more preferably L-arginine.

[0096] Preferably, the composition comprises at least 1% by weight to 10% by weight of the nitrogen-containing compound selected from the group consisting of L-arginine, trolamine, tris(hydroxymethyl)aminomethane, ethanolamine, diethanolamine and mixtures thereof, more preferably L-arginine.

[0097] One of the particularly preferable nitrogen-containing compounds is L-arginine sold under the trade name L ARGININE by the company KYOWA HAKKO.

[0098] Advantageously, the nitrogen-containing compound is present in an amount ranging from 1% by weight to 10% by weight, preferably from 1.2% by weight to 8% by weight, plus preferably from 1.5% by weight to 5% by weight, and even more preferably from 1.8% by weight to 5% by weight, relative to the total weight of the composition. Amphoteric surfactant

[0099] The composition according to the present invention may include at least one amphoteric surfactant.

[0100] The expression "amphoteric surfactant" refers to a surfactant which simultaneously carries the anionic and cationic hydrophilic group with its structure simultaneously containing hermaphroditic ions which are capable of forming cations or anions depending on ambient conditions (such as changes in pH).

[0101] Useful amphoteric surfactants include betaines, sultaines (also called sulfobetaines), alkyl amphoathetas and alkyl amphodiacetates, alkyl amphopropionates, and mixtures thereof.

[0102] Preferably, the amphoteric surfactant is chosen from among the sultaines.

[0103] More preferably, the amphoteric surfactant is chosen from among the hydroxysultaine type surfactants.

[0104] In some cases, the hydroxysultaine type surfactant is chosen from among the (C8-C20 alkyl)amido(Ci-C6 alkyl)hydroxysulfobetaines.

[0105] Preferably, non-limiting examples of the hydroxysultaine-type surfactant include hydroxysultaines of formula (VI): O Œ3 (VI> RC—NH( CH2h—N+—CH2CHCH2SO f CIL OH

[0106] in which R represents an alkyl group having 7 to 18 carbon atoms.

[0107] One of the particularly preferable hydroxysultaine-type surfactants is cocamidopropyl hydroxysultaine, for example, that sold under the trade name TC-SHD 50 RSPO MB by GUANGZHOU TINCI MATERIALS, or those available from SEPPIC or KAO CHEMICAL.

[0108] Advantageously, the amphoteric surfactant is present in an amount ranging from 0.1% by weight to 20% by weight, preferably from 0.5% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the composition. Cationic Polymer

[0109] The composition according to the present invention may include at least one cationic polymer, other than celluloses.

[0110] Preferably, said cationic polymer is chosen from polyquaterniums, cationic guar gum derivatives, and mixtures thereof.

[0111] In some cases, the cationic polymer may include monomer motifs derived from quaternary amine and / or ammonium substituted monomer and / or compatible spacer monomers.

[0112] A suitable cationic polymer includes, for example: copolymers of 1-vinyl-2-pyrrolidine and l-vinyl-3-methylimidazolium salt (e.g., the chloride salt) (called Polyquaternium-16) such as those commercially available from BASF under the trade name LUVIQUAT (e.g., LUVIQUAT FC 370); copolymers of l-vinyl-2-pyrrolidine and dimethylaminoethyl methacrylate (called Polyquaternium-11) such as those commercially available from Gar Corporation (Wayne, NJ, USA) under the trade name GAFQUAT (e.g., GAFQUAT 755N); and a cationic polymer containing quaternary diallyl ammonium including, for example, a homopolymer of dimethyldiallyammonium chloride and the copolymers of acrylamide and dimethyldiallyammonium chloride (called Polyquatemium-6 and Poly quaternium-7).

[0113] Un polymère cationique approprié peut inclure d’autres polyquaterniums, tels que polyquaternium-1, polyquaternium-2, polyquatemium-3, polyquatemium-4, polyquaternium-5, polyquaternium-8, polyquaternium-9, polyquaternium-10, polyquaternium-12, polyquaternium-13, polyquaternium-14, polyquaternium-15, polyquaternium-17, polyquaternium-18, polyquaternium-19, polyquaternium-20, polyquaternium-21, polyquaternium-22, polyquaternium-23, polyquaternium-24, polyquaternium-25, polyquaternium-26, polyquaternium-27, polyquaternium-28, polyquaternium-29, polyquaternium-30, polyquaternium-40, polyquaternium-41, polyquaternium-42, polyquaternium-43, polyquaternium-44, polyquaternium-45, polyquaternium-46, polyquaternium-47, polyquaternium-48, polyquaternium-49, polyquaternium-50, polyquaternium-51, polyquaternium-52, polyquaternium-53, polyquaternium-54, polyquatemium-55, polyquatemium-56, polyquatemium-57, polyquaternium-58, polyquaternium-59, polyquaternium-60, polyquaternium-61,polyquaternium-62, polyquaternium-63, polyquaternium-64, polyquaternium-65, polyquaternium-66, polyquaternium-67, and combinations thereof. ,

[0114] The preferred cationic guar gum derivative may be hydroxypropyltrimonium guar chloride, and preferably hydroxypropyl guar hydroxypropyltrimonium chloride.

[0115] According to the present invention, the cationic polymer, other than celluloses, is preferably chosen from polyquaterniums, cationic guar gum derivatives and mixtures thereof, more preferably chosen from derivatives of cationic guar gum, is even more preferentially hydroxypropyltrimonium guar chloride, and most preferentially hydroxypropyl guar hydroxypropyltrimonium chloride.

[0116] Advantageously, the cationic polymer is present in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.01% by weight to 3% by weight, more preferably from 0.05% by weight to 2% by weight, and even more preferably from 0.1% by weight to 1% by weight, relative to the total weight of the composition. Aqueous solvent

[0117] The composition of the present invention may include at least one aqueous solvent.

[0118] Preferably, the aqueous solvent of the composition according to the present invention includes water and one or more water-miscible or at least partially water-miscible compounds, for example polyols and C2-C8 monoalcohols.

[0119] The term “polyol” should be understood as designating any organic molecule comprising at least two free hydroxyl groups.

[0120] More preferably, the composition according to the present invention comprises water.

[0121] Advantageously, water is present in an amount ranging from 30% by weight to 95% by weight, preferably from 40% by weight to 90% by weight, and more preferably from 50% by weight to 85% by weight, relative to the total weight of the composition. Additional ingredients

[0122] The composition according to the present invention may include one or more additional ingredients, chosen from those classically used in cleaning and / or care products for keratinous material, for example hair and scalp.

[0123] The composition according to the present invention may include any of the following additives: pH correcting agents, biological extracts, perfumes, preservatives and chelating agents.

[0124] According to the present invention, non-limiting examples of pH-correcting agents include potassium acetate, potassium hydroxide, sodium carbonate, sodium hydroxide, sodium hydrogen carbonate, ethanolamines, and mixtures thereof. Sodium hydroxide is a particularly preferred pH-correcting agent.

[0125] A person skilled in the art can correct the type and quantity of additional ingredients present in the compositions according to the present invention by means of routine operations, so that the desired properties of these compositions are not negatively affected by the additional ingredients. Composition

[0126] According to the present invention, the composition comprising the above components is a cleansing and / or care composition for keratinous material, preferably of the hair and scalp.

[0127] According to the present invention, the composition comprising the above components is preferably in the form of a fluid, for example, a lotion, emulsion, paste, cream, or gel. In the context of this disclosure, the term "fluid" means that the composition can flow by means of an external force.

[0128] According to the present invention, the composition preferably has a pH value of 2 to 6.5, preferably 2 to 6, more preferably 3.5 to 5.2.

[0129] By means of the specific components above, the composition according to the present invention can provide improved stability over time even at a high temperature, for example, 50 °C for 5 days, even at a lower pH value, for example, a pH value of 2 to 6.5.

[0130] According to the present invention, microorganisms include all microorganisms that can affect the skin, nails, hair, scalp, and mucous membranes. Examples of microorganisms include, but are not limited to, non-dermatophytes (Candida species such as C. albicans, etc., Scopulariopsis species such as S. brevicaulis, and Malassezia spp.). These are yeasts represented by the genus Candida and by Malassezia furfur (formerly called pityrosporon). Candida affects the skin, nails, hair, scalp, and mucous membranes. Malassezia furfur, which is a common saprophyte of the skin, particularly seborrheic skin, is the causative agent of pityriasis versicolor.

[0131] Moreover, by means of the specific fatty amine as defined above, the composition comprising it can further improve the smooth texture sensation of the keratinous material, even at a lower pH value, for example, a pH value of 2 to 6.5.

[0132] By means of the specific arginine and / or cationic polymer as defined above, the composition comprising them can further improve the smooth texture and / or softness of the keratinous material, even at a lower pH value, for example a pH value of 2 to 6.5.

[0133] By means of the specific surfactant hydroxysultaine as defined above, the foaming property of the composition comprising it can be improved, even at a lower pH value, for example, a pH value of 2 to 6.5.

[0134] By means of the relatively smaller particle size of the selenium sulfide raw material as defined above, the selenium sulfide can disperse better in the composition, and further provide sensations of smooth texture and / or improved softness for the composition including it, even at a lower pH value, for example, a pH value of 2 to 6.5.

[0135] According to a preferred embodiment, the present invention relates to a keratinous material cleansing and / or care composition, with respect to the total weight of the composition, comprising: a. 0.8% by weight to 8% by weight of at least one alpha-hydroxy acid being a lower acid having 2 to 12 carbon atoms, more preferably 2 to 8 carbon atoms, even more preferably 2 to 6 carbon atoms; b. 0.005% to 5% by weight of at least one selenium sulfide; and c. 0.05% by weight to 5% by weight of at least one cellulose;

[0136] wherein the composition optionally has a pH value of 2 to 6.5.

[0137] In a more preferred embodiment, the present invention relates to a keratinous material cleansing and / or care composition, with respect to the total weight of the composition, comprising: a. 0.8% by weight to 8% by weight of at least one alpha-hydroxy acid being a lower acid having 2 to 12 carbon atoms, more preferably 2 to 8 carbon atoms, even more preferably 2 to 6 carbon atoms; b. 0.005% by weight to 5% by weight of at least one selenium sulfide; c. 0.05% by weight to 5% by weight of at least one unsubstituted cellulose; and optionally at least one of the following components: d. 0.1% by weight to 8% by weight of at least one beta-hydroxy acid and / or its derivatives selected from salicylic acid, acetylsalicylic acid, capryloyl salicylic acid, and mixtures thereof; e. 0.05% by weight to 2% by weight of at least one amidoamine; f. 0.5% by weight to 15% by weight of at least one hydroxysultaine surfactant; g. 1.2% by weight to 8% by weight of at least one nitrogen-containing compound chosen from L-arginine, trolamine, tris(hydroxymethyl)aminomethane, ethanolamine, diethanolamine, and mixtures thereof; and h. 0.05% by weight to 2% by weight of at least one cationic guar gum derivative,

[0138] wherein the composition optionally has a pH value of 2 to 6.5.

[0139] In a more preferred embodiment, the present invention relates to a hair and scalp cleansing and / or care composition, with respect to the total weight of the composition, comprising: a. 1% by weight to 6% by weight of at least one alpha-hydroxy acid being a lower monocarboxylic acid having 2 to 8 carbon atoms, more preferably 2 to 6 carbon atoms, more preferably lactic acid; b. 0.2% by weight to 6% by weight of at least one beta-hydroxy acid and / or its derivatives selected from salicylic acid, acetylsalicylic acid, capryloyl salicylic acid, and mixtures thereof; c. 0.01% by weight to 3% by weight of selenium sulfide; d. 0.1% by weight to 1% by weight of at least one cellulose selected from unsubstituted celluloses, cellulose esters, cellulose ethers, cellulose ester ethers, and mixtures thereof, preferably unsubstituted celluloses; and optionally at least one of the following components: e. 0.1% by weight to 1% by weight of brassicamidopropyl dimethylamine; f. 1% by weight to 10% by weight of cocamidopropyl hydroxysultaine; g. 1.5% by weight to 5% by weight of L-arginine; and h. 0.1% by weight to 1% by weight of hydroxypropyl guar chloride hydroxypropyltrimonium;

[0140] wherein the composition optionally has a pH value of 3.5 to 5.2.

[0141] In a more preferred embodiment, the present invention relates to a hair and scalp cleansing and / or care composition, with respect to the total weight of the composition, comprising: a. 1% by weight to 6% by weight of lactic acid; b. 0.2% by weight to 6% by weight of salicylic acid; c. 0.01% by weight to 3% by weight of selenium sulfide; and d. 0.1% by weight to 1% by weight of unsubstituted cellulose;

[0142] wherein the composition optionally has a pH value of 3.5 to 5.2.

[0143] In an even more preferred embodiment, the present invention relates to a hair and scalp cleansing and / or care composition, in relation to the total weight of the composition, comprising: a. 1% by weight to 6% by weight of lactic acid; b. 0.2% by weight to 6% by weight of salicylic acid; c. 0.01% by weight to 3% by weight of selenium sulfide; d. 0.1% by weight to 1% by weight of unsubstituted cellulose; and optionally at least one of the following components: e. 0.1% by weight to 1% by weight of brassicamidopropyl dimethylamine; f. 1% by weight to 10% by weight of cocamidopropyl hydroxysultaine; g. 1.5% by weight to 5% by weight of L-arginine; and h. 0.1% by weight to 1% by weight of hydroxypropyl guar chloride hydroxypropyltrimonium;

[0144] wherein the composition optionally has a pH value of 3.5 to 5.2. Process and use

[0145] The composition according to the present invention can be used in a process of cleaning and / or caring for keratinous material, preferably hair and scalp, by being applied to the keratinous material.

[0146] It has been found that the composition according to the present invention can provide improved stability over time even at high temperatures.

[0147] According to a second aspect, the present invention proposes the use of cellulose to improve the stability of a composition comprising at least one anti-dandruff agent, wherein the anti-dandruff agent comprises an alpha-hydroxy acid and / or a selenium sulfide, and optionally a beta-hydroxy acid and / or its derivatives, wherein the alpha-hydroxy acid, the beta-hydroxy acid and / or its derivatives, the selenium sulfide and the cellulose are preferably defined above.

[0148] Preferably, the composition comprises a mixture of an alpha-hydroxy acid, a beta-hydroxy acid and / or their derivatives, and a selenium sulfide.

[0149] Preferably, the cellulose is selected from unsubstituted celluloses, cellulose esters, cellulose ethers, cellulose ester ethers, and mixtures thereof, preferably selected from unsubstituted celluloses.

[0150] In some cases, the composition has a pH value of 2 to 6.5, preferably 2 to 6, more preferably 3.5 to 5.2.

[0151] According to a third aspect, the present invention proposes a process for cleaning and / or caring for keratinous material, preferably hair and scalp, comprising the following steps: a. the application of the above composition to a wet keratinous material; b. massaging the keratinous material for 2 seconds to 120 seconds; and c. rinsing the keratinous material with water.

[0152] Optionally, the process according to the present invention further includes step d) of drying the keratinous material.

[0153] The present invention is illustrated in more detail by the examples described below, which are given by way of non-limiting illustrations. EXAMPLES

[0154] The main raw materials used, their trade names and suppliers are listed in Table 1, and the materials not specified here were all commercially available.

[0155] [Table 1] Table 1 INCI Name Trade Name Supplier Lactic Acid (L-LACTIC ACID (90%) (CRG) MUSASHINO CHEMICALS LABORATORY SALICYLIC ACID (SALICYLIC ACID) AMIPRESERVE ALBAN MULLER (C RODA) Selenium sulfide (Selenium sulfide) SELENIUM SULPHIDE EP / USP MICRONIZED ESKAY FINE CHEMICALS SODIUM LAURETH SULFATE (SODIUM LAURETH SULFATE) EMAL 170S KAO COCAMIDOPROPYL HYDROXYSULTAINE (COCAMIDOPROPYL HYDROXYSULTAINE) TC-SHD 50 RSPO MB GUANGZHOU TINCI MATERIALS ARGININE L ARGININE KYOWA HAKKO CELLULOSE AQUALON CMC 7 H3SXF ASHLAND

[0156] Comparative Examples 1 to 4 and Inventive Examples 1 to 4

[0157] The compositions according to Comparative Examples (CE) 1 to 4 and Inventive Examples (EX) 1 to 4 comprising the active ingredients indicated in Table 2 were prepared, all quantities being expressed as percentages by weight of active material relative to the total weight of each composition.

[0158] [Table 2] Table 2 Components Ex. 1 Ex. 2 Ex. 3 Ex. 4 EC. 1 EC. 2 CE. 3 EC. 4 Phase A WATER QSP 100 QSP 100 QSP 100 QSP 100 QSP 100 QSP 100 QSP 100 QSP 100 CELLULOSE 0.2 0.2 0.2 0.2 / / 0.2 0.2 CARBOMER / / / / 0.2 / / / XANTH ANE GUM / / / / 0.2 / / HYD ROXYPROPYL GUA R HYDROXYPROPY L-TRIMONIUM CHLORIDE / / 0.3 / / / / / Brassicamidopropyl Dimethylamine / / 0.4 / / / / / Phase B Cocamidopropyl Hydroxysultaine / / 2.5 / / / / / Sodium Laureth Sulfate 14 14 14 14 14 14 14 14 Phase C Salicylic Acid 0.5 / 0.5 / 0.5 0.5 0.5 0.5 Arginine / / 2 / / / / / Lactic Acid 3 3 3 1 3 3 / 0.2 Phase D Selenium Sulfide 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 pH (Sodium Hydroxide) 3.8 3.8 3.8 3.8 3.8 3.8 3.8 3.8 Preparation process

[0159] The composition was prepared from a process comprising the following steps: 1. Mixing each component of phase A until Premix 1 is formed; 2. Adding each component of phase B into Premix 1 and mixing them until it is transparent to form Premix 2; 3. Adding each component of phase C into Premix 2 to form Premix 3; 4. Addition of selenium sulfide from phase D to Premix 3 and mixing until homogenized to form Mixture 1; and 5. Correction of the pH value of Mixture 1 to 3.8 by adding sodium hydroxide to form the final composition. Composition evaluation

[0160] The compositions as prepared were evaluated in terms of stability. Stability test

[0161] For each of the compositions of Inventive Examples 1 to 4 and Comparative Examples 1 to 4, stability was tested using the EPPENDORF 5702 / 5702 R / 5702 RH low-speed centrifuge, comprising the following steps: 1. Adding each composition to a 15 ml centrifuge tube; 2. Centrifuging each sample for 1 hour at a speed of 900 rpm, and 3. observation of the samples to determine if precipitation has occurred.

[0162] In addition, stability was tested by storing each composition at a temperature of 50 °C for 5 days.

[0163] The stability results of the compositions of Inventive Examples 1 to 4 and Comparative Examples 1 to 4 have been presented respectively in the following Table 3.

[0164] [Table 3] Table 3 Properties Ex. 1 Ex. 2 Ex. 3 Ex. 4 EC. 1 EC. 2 EC. 3 EC. 4 Stability after centrifugation for 1 hour at a speed of 900 rpm: No centrifugation of precipitate for 1 hour at a speed of 900 rpm. ...

[0165] From Table 3, it can be seen that only the composition of Inventive Examples 1 to 4, comprising an amount of 0.6% by weight or more of an alpha-hydroxy acid, relative to the total weight of each composition, of a selenium sulfide and of a cellulose, can provide the desired stability after centrifugation for 1 h at 900 rpm and after storage at a high temperature of 50 °C for 5 days.

[0166] On the other hand, each of the compositions of Comparative Examples 1 to 4, which does not include the cellulose of the present invention, but rather includes carbomer or xanthan gum, or includes an amount outside the scope of the present invention of T alpha-hydroxy acid, or does not include alpha-hydroxy acid, cannot provide the desired stability after centrifugation or after storage at 50 °C for 5 days.

[0167] In summary, the composition according to the present invention can provide improved stability over time at a high temperature.

Claims

Demands

1. Composition, preferably for cleansing and / or caring for keratinous material, comprising: a) from 0.6% by weight to 30% by weight of at least one alpha-hydroxy acid, relative to the total weight of the composition; b) at least one selenium sulfide; and c) at least one cellulose.

2. Composition according to claim 1, wherein the alpha-hydroxy acid is a lower acid having 2 to 12 carbon atoms, preferably a lower monocarboxylic acid having 2 to 8 carbon atoms, preferably 2 to 6 carbon atoms, and is more preferably lactic acid.

3. Composition according to any one of the preceding claims, wherein the cellulose is selected from unsubstituted celluloses, cellulose esters, cellulose ethers, cellulose ester ethers and mixtures thereof, preferably selected from unsubstituted celluloses.

4. A composition according to any one of the preceding claims, further comprising at least one beta-hydroxy acid and / or its derivatives, preferably selected from salicylic acid, its derivatives acylated on the hydroxyl group, and its derivatives of formula (I): / OH (I) K rr O in which, R represents a linear, branched, or cyclic saturated aliphatic group or an unsaturated aliphatic group containing one or more double bonds, which may or may not be conjugated, such groups containing from 2 to 22, preferably from 3 to 11 carbon atoms, and optionally being substituted by at least one substituent selected from (a) halogen atoms, (b) the trifluoromethyl group, (c) hydroxyl groups in free form or esterified by an acid having from 1 to 6 carbon atoms, or (d) a carboxyl functional group that is free or esterified by a lower alcohol having from 1 to 6 carbon atoms;

5. R' represents a hydroxyl group or an ester functional group of the following formula (II): ---O--C — Ri (II) O wherein Ri is a saturated or unsaturated, linear or branched aliphatic group having from 1 to 18 carbon atoms, preferably from 4 to 15 carbon atoms; and is more preferentially chosen from salicylic acid, acetylsalicylic acid, capryloyl salicylic acid and mixtures thereof, and more preferentially salicylic acid, and in which the beta-hydroxy acid and / or its derivatives is / are preferably present in an amount ranging from 0.05% to 10% by weight, preferably from 0.1% to 8% by weight, more preferably from 0.2% to 6% by weight, and even more preferably from 0.2% to 3% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, further comprising at least one fatty amine, which is preferably selected from the amidoamines corresponding to the following formula (IV): RCONHR'N(R")2(IV) in which R represents a hydrocarbon radical containing at least 6 carbon atoms, R' represents a divalent hydrocarbon radical containing less than 6 carbon atoms, and R" which may be identical or different, represents a hydrogen or a hydrocarbon radical containing less than 6 carbon atoms, and more preferably, is chosen from the group consisting of oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, stearamidoethyl dimethylamine, lauramidopropyl dimethylamine, myristamidopropyl dimethylamine, behenamidopropyl dimethylamine, dilinoleamidopropyl dimethylamine, palmitamidopropyl dimethylamine, ricinoleamidopropyl dimethylamine, sojamidopropyl dimethylamine, bleamidopropyl dimethylamine germ, toumesolamidopropyl dimethylamine, amandamidopropyl dimethylamine, avocadoamidopropyl dimethylamine, babassuamidopropyl dimethylamine, cocamidopropyl dimethylamine, visonamidopropyl dimethylamine,avoinamidopropyl dimethylamine, sesamidopropyl,

6. dimethylamine, tallamidopropyl dimethylamine, brassicamidopropyl dimethylamine, olivamidopropyl dimethylamine, stearamidoethyl diethylamine, stearamidopropyl diethylamine, palmitamidopropyl diethylamine, palmitamidoethyl diethylamine, palmitamidoethyl dimethylamine, behenamidopropyl diethylamine, behenamidoethyl diethylamine, behenamidoethyl dimethylamine, arachidamidopropyl dimethylamine, arachidamidopropyl diethylamine, arachidamidoethyl diethylamine, arachidamidoethyl dimethylamine, diethylaminoethylstearamide, and mixtures thereof; and most preferably, brassicamidopropyl dimethylamine, and in which the fatty amine is preferably present in an amount ranging from 0.01% to 10% by weight, preferably from 0.01% to 3% by weight, more preferably from 0.05% to 2% by weight, and even more preferably from 0.1% by weight to 1% by weight, relative to the total weight of the composition. Composition according to any one of the preceding claims, further comprising at least one amphoteric surfactant, preferably selected from betaines, sultaines, alkyl amphoathetas and alkyl amphodiacetates, alkyl amphopropionates, and mixtures thereof, more preferably selected from sultaines, even more preferably selected from hydroxysultaine surfactants, even more preferably selected from alkyl(C8-C2O)amidoalkyl(C1-C6)hydroxyl sulfobetaines, and even more preferably a hydroxysultaine surfactant corresponding to the following formula (VI): O CH3 (VI> RC—W(CH3h—N+—CH2CHCH2SO3- CH3 OH in which R represents an alkyl group having 7 to 18 carbon atoms; and is most preferably cocamidopropyl hydroxysultaine, and in which the surfactant hydroxysultaine is preferably present in an amount ranging from 0.1% by weight to 20% by weight, preferably from 0.5% by weight to 15% by weight, and more preferably from 1% by weight to 10% by weight, relative to the total weight of the composition.

7. Composition according to any one of the preceding claims, further comprising at least one nitrogen-containing compound corresponding to the following formula (V) in which Rb R2, R3, R4 and R5, independently of each other, denote a radical chosen from: - a hydrogen atom, - a carboxyl group, and - a linear or branched C3-C6 alkyl group, saturated or unsaturated, which is optionally interrupted by one or more heteroatoms selected from O, S, and N, and / or optionally substituted by one or more groups selected from amino, imino, amidino, guanidino, hydroxyl, sulfydryl, carboxyl, amido, C6 perfluoroalkyl, C6 alkoxy sulfate, phosphate, aryl (preferably phenyl), and heterocyclyl, which is preferably selected from pyrimidyl, piperidyl, morpholinyl, pyranyl, furyl, piperazinyl, pyridyl, imidazolyl, and indolyl, and in which Ri and R4 optionally form a ring containing 5 or 6 atoms chosen from carbon and nitrogen, preferably the nitrogen-containing compound is chosen from arginine, including L-arginine, trolamine, diethanolamine, L-alanine, L-asparagine, L-aspartate, L-cysteine, L-glutamate, L-glutamine, L-glycine, L-histidine, L-isoleucine, L-leucine, L-lysine, L-methionine, L-phenylalanine, L-proline, L-serine, L-threonine, L-tryptophan, L-tyrosine, L-valine, tris(hydroxymethyl)aminomethane, ethanolamine, diethanolamine, monoisopropanolamine, diisopropanolamine, the N-Dimethylaminoethanolamine, triisopropanolamine, 3-isopropoxypropylamine, 3-methoxypropylamine (3-MPA), 3-ethoxypropylamine, 3-(2-ethylhexyloxy)propylamine, 2-(2-aminoethoxy)ethanol (2-2AEE), 3-butoxypropylamine (3-BPA) and monoethanolamine (MEA), and mixtures thereof,

8.

9. more preferably, is chosen from L-arginine, trolamine, tris(hydroxymethyl)aminomethane, ethanolamine, diethanolamine and mixtures thereof, and Even more preferentially, L-arginine is used; in which, the nitrogen-containing compound is preferably present in an amount ranging from 1% by weight to 10% by weight, preferably from 1.2% by weight to 8% by weight, and more preferably from 1.5% by weight to 5% by weight, and even more preferably from 1.8% by weight to 5% by weight, relative to the total weight of the composition. Hair and scalp cleansing and / or care composition, relative to the total weight of the composition, comprising a) 1% by weight to 6% by weight of at least one alpha-hydroxy acid being a lower monocarboxylic acid having 2 to 8 carbon atoms, more preferably 2 to 6 carbon atoms, more preferably lactic acid; b) 0.2% by weight to 6% by weight of at least one beta-hydroxy acid and / or its derivatives selected from salicylic acid, acetylsalicylic acid, capryloyl salicylic acid, and mixtures thereof; c) 0.01% by weight to 3% by weight of selenium sulfide; d) 0.1% by weight to 1% by weight of at least one cellulose selected from unsubstituted celluloses, cellulose esters, cellulose ethers, cellulose ester ethers, and mixtures thereof, preferably unsubstituted celluloses; and optionally at least one of the following components: e) 0.1% by weight to 1% by weight of brassicamidopropyl dimethylamine; f) 1% by weight to 10% by weight of cocamidopropyl hydroxysultaine; (g) 1.5% to 5% by weight of L-arginine; and h) 0.1% by weight to 1% by weight of hydroxypropyl guar hydroxypropyltrimonium chloride; in which the composition optionally has a pH value of 3.5 to 5.

2. Use of a cellulose to improve the stability of a composition comprising at least one anti-dandruff agent, wherein the anti-dandruff agent comprises an alpha-hydroxy acid and / or a selenium sulfide, and optionally a beta-hydroxy acid and / or its derivatives, and preferably comprises a mixture of an alpha-hydroxy acid, a beta-hydroxy acid and / or its derivatives, and a selenium sulfide; and wherein the composition is preferably defined according to any one of claims 1 to 8.

10. A process for cleaning and / or caring for keratinous material, more preferably hair and scalp, comprising the following steps: a) applying the composition according to any one of claims 1 to 8 onto wet keratinous material; b) massaging the keratinous material for 2 to 120 seconds; and c) rinsing the keratinous material with water.