Abstract: The present invention relates to a method for dyeing keratinous fibers, in particular human keratinous fibers, such as the hair, in which the said fibers are treated starting from one or more cosmetic compositions comprising a) one or more ortho-diphenol(s), b) one or more inorganic titanium salt(s) or alkoxytitanium(s), c) one or more acid(s) and d) optionally one or more chemical oxidizing agent(s), such as hydrogen peroxide or one or more hydrogen peroxide generating system(s).

Abstract: The object of the invention is a ready to use coloring composition containing at least 0.02 wt % of at least one compound chosen from the group consisting of catechins, gallic acid, gallates, and mixtures thereof, together with a silver salt, and a product for simultaneous or timewise separate use comprising two components A and B.

Abstract: Personal care formulations containing alkyl ketal esters having the structure wherein a is 0 or an integer of 1 to 12; b is 0 or 1; R2 is a divalent C1-8 group optionally substituted with up to 5 hydroxyl groups; and R1 is C1-6 alkyl.

Abstract: Disclosed and claimed herein are a composition and a kit for coloring keratin fibers, and processes of their use. The composition includes a catechol-based color precursor.

Abstract: The present invention relates to the use of tea-polyphenol and/or tea-pigment as a dye and its products, and specifically relates to use of a combination of tea-polyphenol and/or its oxidation product, tea-pigment, as a dye active and a metal salt for dyeing human or animal hair, or use of the combination for the preparation of a product for dyeing human or animal hair, and to a hair dyeing product or a hair dyeing combination product comprising tea-polyphenol and/or tea-pigment. The present invention has the advantages including good dyeing fastness, natural and bright, not-stimulating, not-allergenic, not-mutagenic, no damage to hair, simple to operate and short time consuming.

Abstract: Disclosed is a first composition of an oxidative permanent hair dye product that includes a C1-C4 alcohol, an anionic surfactant, a nonionic surfactant, an antioxidant, an oxidative dye, a C14-C22 fatty alcohol, a metal sequestering agent, an alkali agent, and purified water. According to the oxidative permanent hair dye product according to the present invention, foams generated by mixing a liquid first composition that includes a dye and a liquid second composition that includes an oxidant continuously retained on hair for more than 30 minutes, and thus hair, even close to the root, can be simply and conveniently colored in the same manner as shampooing without using a comb or brush.

Abstract: A two-part foam hair dye which comprises a first part comprising an alkali agent, a second part comprising hydrogen peroxide, and a non-aerosol foamer container, wherein the first part comprises the components (A) to (D), an equivalent ratio of a anion site of the component (A) to a cation site of the component (B) (anion/cation) is more than 1, a mass ratio of a content of the component (C) to content of the component (D) ((C)/(D)) is 5 or less, and the liquid mixture has a viscosity (25° C.) of 1 to 300 mPa·s: (A) a carboxylic acid anion surfactant, (B) a polymer or copolymer having a mole fraction of diallyldimethyl quaternary ammonium salt monomer of 70% or more, (C) 0.5 to 1.5% by mass of an oxidation dye having a meta-dihydroxybenzene structure, and (D) 0.1 to 9% by mass of polypropyleneglycol of Mw 200 to 1200.

Abstract: The present invention relates to a dye composition comprising at least one oxidation dye precursor, at least one polycondensate of ethylene oxide and propylene oxide having the following structure: H—(O—CH2—CH2)a—(O—CH(CH3)—CH2)b—(O—CH2—CH2)a—OH, in which a and a? range from 2 to 150 and b ranges from 1 to 100; and at least one anionic surfactant of polyoxyalkylenated fatty acid type, the weight ratio between the polycondensate(s)/the polyoxyalkylenated fatty acid(s) ranging from 0.05 to 1. The invention also relates to a dyeing process using this composition after mixing with a composition comprising an oxidizing agent. Another subject of the invention is devices comprising at least two compartments, the first compartment comprising the above composition and the second compartment comprising a composition comprising at least one oxidizing agent.

Abstract: The present invention relates to a dye composition comprising at least one oxidation dye precursor, at least one poly-condensate of ethylene oxide and propylene oxide having the following structure: H—(O—CH2—CH2)a—(O—CH(CH3)—CH2)b—(O—CH2—CH2)a—OH, in which a and a? range from 2 to 150 and b ranges from 1 to 100; and at least one cationic polymer with a charge density of greater than or equal to 4 meq./g. The invention also relates to a dyeing process using this composition after mixing with a composition comprising an oxidizing agent. Another subject of the invention is devices comprising at least two compartments, the first compartment comprising the above composition and the second compartment comprising a composition comprising at least one oxidizing agent.

Abstract: A subject-matter of the invention is a composition comprising a) at least one ortho-diphenol derivative, b) at least one specific metal derivative and c) at least one basifying agent, a method for dyeing keratinous fibers by treatment of the said fibers using the ingredients a), b) et c) and the use thereof for dyeing keratinous fibers. This hair dyeing method makes it possible to obtain better colorations which are more uniform, chromatic and lasting and which do not detrimentally affect the cosmetic properties of the keratinous fibers, starting from an extract of ortho-diphenols which are in particular natural.

Abstract: The subject of the invention is a composition for dyeing keratin fibres, comprising at least one 1,8-dihydroxynaphthalene derivative and at least one basifying agent other than aqueous ammonia; the use of the composition for hair dyeing and also the use of the composition in a dyeing process for keratin fibres. The composition according to the invention makes it possible to dye keratin fibres under mild oxidizing conditions even without using an oxidation base and an aromatic amine, while at the same time covering a broad colour range with 1,8-dihydroxynaphthalene derivatives. The observed dyeing under oxidizing conditions operates under mild conditions of oxidation and/or basifying agent, in particular in the air, and does not produce any unpleasant odour.

Abstract: The present invention relates to a cosmetic composition for oxidation dyeing keratin fibers comprising, in an aqueous medium: (1) at least one oxidation dye; (2) at least one oxidizing agent; and (3) 1.5 wt % or more, relative to the total weight of the composition, of at least one amphoteric surfactant which is preferably a betaine-type amphoteric surfactant that may preferably be selected from the group consisting of alkylbetaines, sulfobetaines, alkylamidoalkylbetaines and alkylamidoalkylsulfobetaines, in particular alkylbetaines. The present invention is useful because the cosmetic composition according to the present invention can be prepared by a simple and inexpensive process, avoiding potential compatibility issues, and can provide better cosmetic properties and color intensity.

Abstract: A subject-matter of the invention is a composition comprising a) at least one ortho-diphenol derivative, b) at least one specific metal derivative and c) at least one basifying agent, a method for dyeing keratinous fibres by treatment of the said fibres using the ingredients a), b) et c) and the use thereof for dyeing keratinous fibres. This hair dyeing method makes it possible to obtain better colorations which are more uniform, chromatic and lasting and which do not detrimentally affect the cosmetic properties of the keratinous fibres, starting from an extract of ortho-diphenols which are in particular natural.

Abstract: A two-part foam hair dye which comprises a first part comprising an alkali agent, a second part comprising hydrogen peroxide, and a non-aerosol foamer container, wherein the first part comprises the components (A) to (D), an equivalent ratio of a anion site of the component (A) to a cation site of the component (B) (anion/cation) is more than 1, a mass ratio of a content of the component (C) to the content of the component (D) ((C)/(D)) is 5 or less, and the liquid mixture has a viscosity (25° C.) of 1 to 300 mPa·s: (A) a carboxylic acid anionic surfactant, (B) a polymer or copolymer having a mole fraction of diallyldimethyl quaternary ammonium salt monomer of 70% or more, (C) 0.5 to 1.5% by mass of an oxidation dye having a meta-dihydroxybenzene structure, and (D) 0.1 to 9% by mass of polypropyleneglycol of Mw 200 to 1200.

Abstract: An agent in foam form for coloring keratin-containing fibers, in particular human hair, under induction by atmospheric oxygen and methods for coloring keratin-containing fibers using such agent is provided. In an embodiment, the agent comprises, in a cosmetically acceptable carrier, at an alkaline pH of 8 to 10.5, (a) as a color-forming component in the form of a dye precursor of a nature-analogous dye an indole and/or indoline derivative, (b) an alkalizing agent, and (c) a propellant, the agent containing no additional oxidizing agent for the color-forming components.

Abstract: Disclosed and claimed herein are a natural coloring formulation for coloring hair, and methods of its use. The coloring formulation includes a catechol-based precursor and an oxidizing agent. Additionally an alkalizing agent may be present. The formulation is substantially free of organic solvents, co-solvents and diluents.

Abstract: The invention provides dye mixtures for application to human hair, the dye mixtures comprising polyphenolic materials, these materials being obtained from botanical sources. Preferably, the botanical source is fruit, especially fruit selected from blackcurrants, blackberries, blueberries, bilberries, cranberries, grapes, chokeberries, Saskatoon berries, sea-buckthorn, mulberries acai, cherries, red cabbage and/or figs. Preferably, the polyphenolic materials comprise anthocyanin compounds which, most preferably, are aglycone anthocyanidins or glycosylated anthocyanins of the formula (III): wherein R1 and R2 are, independently, H, OH or OCH3, R3 is OH (aglycone anthocyanidins) or a glycosyl group (glycosylated anthocyanins), and x is a counter-ion. The invention also provides methods for the preparation of these dye mixtures and for the use of the dye mixtures in the semi-permanent coloration of human hair.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one fatty monoamine compound; (b) at least one nonionic surfactant; (c) at least one anionic silicone; (d) at least one dye chosen from oxidation dye precursors and direct dyes. The compositions of the present invention may optionally contain at least one thickening agent, at least one alkaline agent, at least one fatty substance other than a fatty acid, at least one salt, and at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one polyamine compound comprising at least three amino groups; (b) at least one nonionic surfactant; (c) at least one compound chosen from an alkyl ether carboxylic acid, an alkyl ether carboxylate, a fatty acid having from about 6 to about 40 carbon atoms, and mixtures thereof; (d) at least one dye chosen from oxidation dye precursors and direct dyes. The compositions of the present invention may optionally contain at least one thickening agent, at least one alkaline agent, at least one fatty substance, at least one salt, and at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one fatty monoamine compound; (b) at least one nonionic surfactant; (c) at least one phosphate ester chosen from alkoxylated alkyl phosphate esters and alkyl phosphate esters; (d) at least one dye chosen from oxidation dye precursors and direct dyes. The compositions of the present invention may optionally contain at least one thickening agent, at least one alkaline agent, at least one fatty substance other than a fatty acid, at least one salt, and at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one fatty quaternary amine compound; (b) at least one nonionic surfactant; (c) at least one phosphate ester chosen from alkoxylated alkyl phosphate esters and alkyl phosphate esters; (d) at least one dye chosen from oxidation dye precursors and direct dyes; (e) optionally, at least one thickening agent; (f) optionally, at least one alkaline agent; (g) optionally, at least one fatty substance other than a fatty acid present in the ready-to-use composition; h) optionally, at least one salt; and (i) optionally, at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one phospholipid; (b) at least one nonionic surfactant; (c) at least anionic silicone; (d) at least one dye chosen from oxidation dye precursors and direct dyes. The compositions of the present invention may optionally contain at least one thickening agent, at least one alkaline agent, at least one fatty substance other than a fatty acid, at least one salt, and at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one polyamine compound having at least three amino groups; (b) at least one nonionic surfactant; (c) at least one phosphate ester chosen from alkoxylated alkyl phosphate esters and alkyl phosphate esters; (d) at least one dye chosen from oxidation dye precursors and direct dyes. The compositions of the present invention may optionally contain at least one thickening agent, at least one alkaline agent, at least one fatty substance, at least one salt, and at least one oxidizing agent.

Abstract: (a) The present invention is drawn to a composition and method for permanently coloring keratinous substrates containing: (a) at least one fatty monoamine compound; (b) at least one nonionic surfactant; (c) at least one compound chosen from an alkyl ether carboxylic acid, an alkyl ether carboxylate, a fatty acid having from about 6 to about 40 carbon atoms, and mixtures thereof; (d) at least one dye chosen from oxidation dye precursors and direct dyes; (e) optionally, at least one thickening agent; (f) optionally, at least one alkaline agent; (g) optionally, at least one fatty substance other than a fatty acid present in the ready-to-use composition; (h) optionally, at least one salt; and (i) optionally, at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for dyeing keratinous substrates containing: (a) at least one polyamine compound comprising at least three amino groups; (b) at least one nonionic surfactant; (c) at least anionic silicone; (d) at least one dye chosen from oxidation dye precursors and direct dyes. The compositions of the present invention may optionally contain at least one thickening agent, at least one alkaline agent, at least one fatty substance, at least one salt, and at least one oxidizing agent.

Abstract: The present invention is drawn to a composition and method for coloring keratinous substrates containing: (a) at least one fatty quaternary amine; (b) at least one nonionic surfactant; (c) at least anionic silicone; (d) at least one dye chosen from oxidation dye precursors and direct dyes; (e) optionally, at least one thickening agent; (f) optionally, at least one alkaline agent; (g) optionally, at least one fatty substance other than a fatty acid; (h) optionally, at least one salt; and (i) optionally, at least one oxidizing agent.

Abstract: This invention relates to a permanent dye for colouring keratinous fibres, in particular one based on the extract of Terminalia chebula, also known as Black Myrobalan or Chebulic Myrobalan, a 30 metres tall evergreen tree native to southern Asia from India/Nepal to southwestern China to Sri Lanka, Malaysia and Vietnam bearing 2 to 4.5 cm long dark drupe-like fruit with longitudinal ridges. Non-permanent hair colour comprises either active species which are larger than 10 Angstroms and can only coat the hair shaft rather than diffuse through the pores into the hair shaft or active species which are not larger than 10 Angstroms and can diffuse through the pores into the hair shaft but once within the hair shaft are able to react or associate with either another species to form a product larger than 10 Angstroms or the internal surface of the hair shaft and thereby to become trapped within the hair shaft.

Abstract: The present invention is concerned with a dye system for application to a substrate, the dye system comprising: (a) at least one dye precursor; (b) an oxidising agent; and (c) a catalyst, wherein the catalyst is a homogeneous catalyst or a heterogeneous catalyst. Preferably, the catalyst comprises at least one metal-containing compound. The invention also envisages a method for the coloration of a substrate, the method comprising treating the substrate with the dye system of the invention. In preferred embodiments of the invention, the substrate comprises human hair, natural or synthetic polymers, or textile fibres. In further preferred embodiments, the at least one dye precursor is an organic precursor, the at least one metal derivative for use as a catalyst comprises at least one inorganic metal compound or at least one metal complex comprising at least one organic ligand, and the oxidising agent is hydrogen peroxide.

Abstract: Disclosed herein are compositions suitable for use in dyeing keratin-containing fibers. Further disclosed herein are colorant systems and compositions comprising the colorant systems. Also disclosed are kits comprising one or more colorant systems and an activator composition.

Abstract: The present disclosure relates to a composition for dyeing or lightening human keratin fibers, comprising: a cosmetically acceptable medium; at least 25% by weight of at least one fatty substance; at least one cationic polymer; at least one dye chosen from oxidation dyes and direct dyes; at least one basifying agent; and at least one oxidizing agent. The disclosure also relates to a dyeing or lightening process using it. Another subject of the disclosure is multi-compartment devices or kits for obtaining, after mixing together the compositions of the compartments, just before its application, a composition according to the disclosure.

Abstract: A two-part foam hair dye having a first agent containing an alkali agent, a second agent containing hydrogen peroxide, and a non-aerosol foamer container, wherein the first agent contains (A), from 0.20 to 2.00 mol/kg of (B), and 0.05 mol/kg or greater of (C1); a total concentration of (C1) and (C2) in the first agent is from 0.16 to 0.50 mol/kg: and a mixture of the first agent and the second agent has a viscosity of from 1 to 300 mPa·s; (A) a water-soluble cationic polymer, (B) an alkali metal ion, (C1) an oxidation dye having a phenolic hydroxyl group, and (C2) an anionic surfactant.

Abstract: A natural coloring composition for coloring materials, and methods of its use. The coloring composition comprises a natural precursor aromatic ring molecule such as L-DOPA that is oxidatively oligomerized or polymerized in the presence of the enzyme tyrosinase to form colored compounds that dye a material. The natural coloring composition can also include a buffer, colorant, stabilizer, and/or thickening agent, and can comprise one or two inactive solutions that are combined to form an active coloring composition.

Abstract: A natural coloring composition for coloring materials, and methods of its use. The coloring composition comprises a natural precursor aromatic ring molecule such as L-DOPA that is oxidatively oligomerized or polymerized in the presence of an activator, such as a salt or an enzyme, to form colored compounds that dye a material. The natural coloring composition can also include a buffer, colorant, stabilizer, and/or thickening agent, and can comprise one or two inactive solutions that are combined to form an active coloring composition.

Abstract: The disclosure relates to a method for dyeing keratinous fibers by applying, to said fibers, i) at least one entity chosen from ortho-diphenol and derivatives thereof, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide, and iv) at least one (bi)carbonate, wherein the method for coloring keratinous fibers is carried out in at least two stages, and wherein the at least one (bi)carbonate and the at least one metal salt are applied in separate stages. The disclosure also relates to a ready-to-use cosmetic composition and relates to a multicompartment device comprising from 2 to 5 compartments comprising from 2 to 5 compositions.

Abstract: The disclosure relates to methods for dyeing keratinous fibers by treatment of said fibers with i) at least entity chosen from ortho-diphenol and derivatives thereof, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide and iv) at least one (bi)carbonate, said method additionally involving an intermediate wiping and/or drying and/or non rinsing stage.

Abstract: The present disclosure relates to a composition for the oxidation dyeing of keratin fibers, for example, human keratin fibers such as the hair, intended to be mixed at the time of use with an oxidizing agent, comprising: A) at least one oxidation base chosen from para-aminophenols and the addition salts thereof with an acid; B) at least one additional dye precursor different from the at least one oxidation base defined in A); and C) dipropylene glycol; wherein: the at least one oxidation base is present in an amount of greater than or equal to 1.5% by weight, relative to the total weight of the composition; and the dipropylene glycol is present in an amount of greater than or equal to 3.5% by weight, relative to the total weight of the composition.

Abstract: The disclosure relates to a method for dyeing keratinous fibers by applying to said fibers i) at least one entity chosen from ortho-diphenol and derivatives thereof, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide, iv) at least one (bi)carbonate and v) at least one surface-active agent chosen from anionic and nonionic surface-active agents. The disclosure also relates to a composition comprising i) at least one entity chosen from ortho-diphenol and derivatives thereof, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide, iv) at least one (bi)carbonate and v) at least one surface-active agent chosen from anionic and nonionic surface-active agents.

Abstract: The disclosure relates to methods for dyeing keratinous fibers by applying, to said fibers i) at least one entity chosen from ortho-diphenol and derivatives thereof, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide, iv) at least one (bi)carbonate, and v) at least one basifying agent that is not a (bi)carbonate. The disclosure also relates to multicompartment devices comprising the ingredients i), ii), iii), iv) and v). The disclosure also relates to compositions comprising the ingredients i), ii), iii), iv) and v).

Abstract: Provided is a ready-to-use composition for the oxidation dyeing of keratin fibers, and for example of human keratin fibers such as the hair, comprising, A) at least one fatty substance other than fatty acids present in the ready-to-use composition in an amount of greater than or equal to 25% by weight relative to the total weight of the ready-to-use composition, B) at least one polymeric thickener, C) at least one dye precursor, D) at least one oxidizing agent and E) at least one alkaline agent wherein at least one of the at least one alkaline agent is an organic amine. Also provided is a method of dyeing keratin fibers, comprising applying the ready-to-use composition to the keratin fibers for a sufficient time to develop the desired coloration.

Abstract: The disclosure relates to methods for dyeing keratinous fibers by treatment of said fibers with i) at least one entity chosen from hematoxylin, hematein, brazilin, brazilein, and their derivatives, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide and iv) at least one (bi)carbonate. The disclosure also relates to multicompartment devices and compositions comprising the ingredients i), ii), iii) and iv).

Abstract: Processes for coloring a keratin material, comprising applying to the keratin material, in the presence of oxygen, at least one component (A) comprising, in a physiologically acceptable medium:—at least one dye precursor chosen from compounds comprising at least one aromatic ring comprising at least two hydroxyl groups borne by two successive carbon atoms of the at least one aromatic ring, and at least one catalytic system comprising at least one first catalyst (1) chosen from Mn(II) and Zn(II) salts and oxides and/or at least one second catalyst (2) chosen from alkali metal hydrogen carbonates and alkaline-earth metal hydrogen carbonates followed by applying at least one component (B) comprising at least one acidic composition to fix the shade and followed by applying at least one component (C) comprising at least one alkaline composition to increase the intensity of the color or to modify the shade and optionally fixing the new color or shade obtained by applying a new application of at least one compositio

Abstract: The present invention relates to compositions for the oxidative dyeing of keratin fibres, comprising a medium suitable for dyeing and a compound 2-(amino or substituted amino)-3,5-substituted phenol compounds according to the Formula (I), as defined herein.

Abstract: A first hair coloring agent composition is a hair coloring agent composition comprising (A) one or more compounds selected from the group consisting of p-phenylenediamine, toluene-2,5-diamine and their salts, (B) ?-naphthol and (C) resorcin (with the proviso that p-aminophenol is not contained), wherein the components (A) to (C) are contained in a total amount of 60 to 100% by weight when the total amount of dye components in the hair coloring agent composition is 100% by weight, and based on 1 part by weight of the component (A), the component (B) is contained in an amount of 0.1 to 1 part by weight, and the component (C) is contained in an amount of 0.45 to 1.5 parts by weight. A second hair coloring agent composition is a hair coloring agent composition further comprising (D) p-aminophenol in addition to the components (A) to (C), wherein the components (A) to (D) are contained in given amounts and in given weight ratios.

Abstract: The object of the present invention are (3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof of formula (I), with 0?n?2 and HX denoting an inor-ganic or organic acid, the colorant containing these compounds and a method for producing the compounds of formula (I).

Abstract: The present disclosure is directed to a family of N-alkylheteroaryl secondary para-phenylenediamines, to their preparation, and to a cosmetic composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising, in a suitable dyeing medium, at least one N-alkylheteroaryl secondary para-phenylenediamine. Further disclosed herein is a process of dyeing keratin fibers, a ready-to-use composition, and a kit comprising at least two compartments.

Abstract: The present invention relates to 2-(amino or substituted amino)-5,6-substituted phenol compounds according to the Formula (I), as defined herein and compositions for the oxidative dyeing of keratin fibres, comprising a medium suitable for dyeing and a compound of the Formula (I).

Abstract: The present invention relates to 2-(amino or substituted amino)-3,5,6-substituted phenol compounds according to the Formula (I), as defined herein and compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and a compound of the Formula (I).

Abstract: A composition comprising at least one coupler chosen from 2-chloro-6-methyl-3-aminophenol and addition salts thereof, at least one oxidation base and at least one associative polymer comprising at least one C8-C30 fatty chain; the use of the composition for the oxidation dyeing of keratin fibres; the dyeing process using this composition; and multi-compartment devices comprising the composition.

Abstract: The present disclosure relates to a composition for oxidation dyeing keratin fibers, for instance, human keratin fibers such as the hair, comprising 2-chloro-6-methyl-3-aminophenol as a coupler, para-phenylenediamine or para-tolylenediamine as at least one first oxidation base, N,N-bis(?-hydroxyethyl)-para-phenylenediamine or 2-(?-hydroxyethyl)-para-phenylenediamine as at least one second oxidation base, and at least one associative thickening polymer. The present disclosure also relates to a multi-compartment device or kit for the oxidation dyeing of keratin fibers comprising the compositions disclosed herein, and to the dyeing process using these compositions.

Abstract: The present invention relates to a composition for dyeing keratin fibres, and in particular human keratin fibres such as the hair, containing, in a support that is suitable for dyeing, at least one oxidation dye precursor, characterized in that it comprises at least one alcohol oxidase enzyme and at least one substrate for the said enzyme. This patent application also relates to a process for dyeing keratin fibres, which consists in applying this composition, and also to a dyeing “kit”.