Abstract: The present invention relates to a composition for the oxidation dyeing of keratin fibres, in particular of human keratin fibres such as the hair, comprising at least one oxidation base chosen from 4,5- or 3,4-diaminopyrazoles and triaminopyrazoles, in combination with at least one selected carbonyl compound, and also to the dyeing process using this composition with an oxidizing agent.

Abstract: The present invention relates to a composition for the oxidation dyeing of keratin fibres, in particular of human keratin fibres such as the hair, comprising at least one oxidation base chosen from 4,5- or 3,4-diaminopyrazoles and triaminopyrazoles, in combination with at least one selected mineral compound, and also to the dyeing process using this composition with an oxidizing agent.

Abstract: The present application relates to a cosmetic composition intended for treating keratin fibers, comprising, in a support which is suitable for keratin fibers: (a) at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme; (b) at least one nonionic fatty sucronamide; as well as to processes for treating keratin fibers, in particular processes for dyeing, permanently reshaping or bleaching the hair, using this composition.

Abstract: The invention relates to a dye composition for keratin fibres, in particular for human keratin fibres such as the hair, having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer.

Abstract: The invention relates to a cosmetic mixture for the oxidation tinting of keratin fibers, especially human hair, comprising in a support material suitable for tinting keratin fibers (a) at least one laccase-type enzyme; (b) at least one particular conditioning agent for keratin fibers which is insoluble in aqueous media; and (c) at least one oxidation colorant. The invention also relates to the tinting methods using the above mixture.

Abstract: The invention relates to a composition for dyeing keratinous fibres, in particular human keratinous fibres such as hair, comprising, in an appropriate dyeing medium, at least one cationic direct dye of a given formula, and which is characterized in that it contains, in addition, at least one anionic surfactant chosen from the group consisting of acyl isethionates, acyl taurates, sulphosuccinates, acyl sarcosinates, acyl glutamates, polyoxyalkylenated ether carboxylic acids and their salts, fatty glucamide sulphates, alkyl galactoside uronates, anionic derivatives of alkyl polyglucosides and mixtures thereof.

Abstract: The invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least one thickening polymer chosen from nonionic guar gums, biopolysaccharide gums of microbial origin, gums derived from plant exudates, pectins, alginates, starches, and carboxyalkylcelluloses. The invention also relates to the dyeing processes and dyeing devices using the composition.

Abstract: The invention concerns a ready-to-use composition for oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair comprising, in a suitable dyeing medium, at least an oxidation base, 2-amino 3 hydroxy pyridine as coupling agent, and at least an enzyme such as laccase, as well as the method using said composition.

Abstract: The invention relates to a dye composition for keratin fibers, in particular for human keratin fibers such as the hair, having, in a medium suitable for dyeing, at least one cationic direct dye of given formula, and containing at least one specific cationic or amphoteric substantive polymer. The invention also relates to the dyeing processes and devices using the composition.

Abstract: The invention relates to a cosmetic mixture for the oxidation tinting of keratin fibres, containing in a support material suitable for tinting keratin fibres (a) at least one laccase-type enzyme; (b) at least one polymer thickener selected from the group constituted by: (i) amphiphilic non-ionic polymers comprising at least one fatty chain and at least one hydrophilic unit; (ii) anionic amphiphilic polymers comprising at least one hydrophilic unit and at least one fatty chain unit; (iii) cross-linked acrylic acid homopolymers; (iv) cross-linked 2-acrylamide-2-methyl-propane sulfonic acid homopolymers and their cross-linked acrylamide copolymers, which are partially or fully neutralized; (v) ammonium acrylate homopolymers or ammonium acrylate and acrylamide copolymers; (vi) dimethylaminoethyl-methacrylate homopolymers quatemized by methyl chloride or dimethylaminoethyl-methacrylate copolymers quaternized by methyl chloride and acrylamide copolymers; (vii) non-ionic guar gums; (viii) scleroglucan gum (a biopoly

Abstract: The invention relates to an oxidation dye composition for keratin fibres, in particular for human keratin fibres such as hair, of the type comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, and which is characterized in that it contains (i) as oxidation dye precursor, at least one para-phenylenediamine substituted in the 2-position on the benzene ring with a C1-C4 hydroxyalkyl or hydroxyalkoxy radical, and/or at least one of the addition salts thereof with an acid, and (ii) at least one cationic or amphoteric substantive polymer. The invention also relates to the use of this composition for dyeing keratin fibres, especially hair.

Abstract: The invention relates to a ready-to-use mixture for tinting keratin fibres, especially human keratin fibres such as hair, comprising in a support material suitable for tinting keratin fibres (a) at least one laccase-type enzyme; (b) at least one solvent selected from among certain polyols and their ethers or polyethers; and (c) at least one oxidation colorant. The invention also relates to the hair tinting method using said mixture.

Abstract: The invention concerns a ready-to-use oxidation composition for dyeing keratinous fibres, in particular human keratinous fibres such as hair comprising, in a medium suitable for dyeing, at least one oxidation colouring agent, at least an acid direct colouring agent comprising in its structure at least a sulphonic function or at least a carboxylic function, and at least an enzyme such as laccase, as well as the dyeing method using said composition.

Abstract: The invention relates to a composition for dyeing keratinous fibres, in particular human keratinous fibers such as hair, comprising, in an appropriate dyeing medium, at least one cationic direct dye of a given formula, and which is characterized in that it contains, in addition, at least one anionic surfactant chosen from the group consisting of acyl isethionates, acyl taurates, sulphosuccinates, acyl sarcosinates, acyl glutamates, polyoxyalkylenated ether carboxylic acids and their salts, fatty glucamide sulphates, alkyl galactoside uronates, anionic derivatives of alkyl polyglucosides and mixtures thereof. The invention also relates to the dyeing methods and devices using it.

Abstract: The invention relates to a ready-to-use composition for the oxidation dyeing of keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a medium which is suitable for dyeing, at least one first oxidation base chosen from para-phenylenediamine derivatives, double bases, ortho-aminophenols and heterocyclic bases, at least one second oxidation base chosen from para-aminophenols, at least one meta-aminophenol as coupler and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme, and to the dyeing process using this composition.

Abstract: The invention relates to a composition for dyeing keratin fibers, in particular human keratin fibers such as the hair, comprising at least one cationic direct dye of given formula and at least one thickening polymer chosen from nonionic guar gums, biopolysaccharide gums of microbial origin, gums derived from plant exudates, pectins, alginates, starches, and carboxyalkylcelluloses. The invention also relates to the dyeing processes and dyeing devices using the composition.

Abstract: The present application relates to a cosmetic composition intended for treating keratin fibers, comprising, in a support which is suitable for keratin fibers: (a) at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the said enzyme; (b) at least one nonionic guar gum; as well as to processes for treating keratin fibers, in particular processes for dyeing, permanently reshaping or bleaching the hair, using this composition.

Abstract: The present application relates to a cosmetic composition intended for treating keratin fibers, comprising, in a support which is suitable for keratin fibers:

Abstract: The present application relates to a cosmetic composition intended for treating keratin fibers, comprising, in a support which is suitable for keratin fibers:

Abstract: The invention concerns a ready-to-use composition for dyeing human keratinous fibers and more particularly human hair, comprising in support suitable for dyeing keratinous fibers: (a) at least an enzyme such as laccase; (b) at least a cationic substantive or particular amphoteric polymer; (c) at least an oxidation coloring agent, as well as the dyeing methods using said composition.