Abstract: The invention relates to a dye composition comprising a first oxidation base of the diaminopyrazole type, a second oxidation base of the para-phenylenediamine type containing a cyclic amino group, and a coupler. The invention also relates to the use of this composition for dyeing keratin fibers and also to the dyeing process using this composition.

Abstract: The present invention relates to a composition for dyeing keratinous fibers, containing at least one azodiazine direct dye corresponding to the following formula (I): The present invention also relates to a method for dyeing keratinous fibers using these direct dyes.

Abstract: Disclosed herein are methods for dyeing keratin fibers, for example human keratin fibers such as hair, comprising applying to the keratin fibers a dye composition comprising, as a direct dye, at least one organosilane compound chosen from compounds of formula (I): Also disclosed herein are dye compositions for dyeing keratin fibers comprising at least one organosilane compound of formula (I) and at least one oxidation base.

Abstract: The invention relates to an oxidizing composition for keratin fibers, in particular for human keratin fibers and more particularly the hair, comprising, in a cosmetically acceptable medium: at least one oxidizing agent chosen from the group formed by hydrogen peroxide and compounds capable of producing hydrogen peroxide by hydrolysis, or mixtures thereof, at least one copolymer (b) based on 2-acrylamido-2-methylpropanesulphonic acid and acrylamide, and at least one polymer (c) chosen from crosslinked 2-acrylamido-2-methylpropanesulphonic acid homopolymers or amphiphilic copolymers consisting of at least one sequence of 2-acrylamido-2-methylpropanesulphonic acid units and at least one unit comprising a hydrophobic portion. The invention also relates to the dyeing, permanent-waving, bleaching and stripping processes and devices using the said composition.

Abstract: The invention relates to a dye composition comprising an oxidation base of the diaminopyrazole type and a pyrazolo-azole coupler. The invention also relates to the use of this composition for dyeing keratin fibres and also to the dyeing process using this composition.

Abstract: The present disclosure relates to a process for dyeing keratin fibers comprising applying to the keratin fibers a composition comprising at least one hydrophobic direct dye with a logP of greater than 2, in an aqueous-alcoholic dyeing medium comprising less than or equal to 60% water, wherein the dye composition is in contact with the keratin fibers and is exposed to a temperature greater than or equal to 60° C.

Abstract: The present invention relates to stripping artificial color from keratin fibers with a composition containing at least one phosphine and/or an acid-addition salt thereof.

Abstract: Paste for bleaching human keratinous fibres, and more particularly the hair, containing at least one organic inert liquid, at least one peroxygenated salt and at least one alkaline agent, wherein it comprises at least one ceramide-type compound. Method for bleaching human keratinous fibres using it, and an appropriate device.

Abstract: Disclosed herein is a composition for dyeing keratinous fibers, comprising at least one direct dye corresponding to the following formula (I): in which R1 and R2 may be chosen from hydrogen atoms; R3 may be a phenyl group, n may chosen from 0 and 1; R4 and R5 may be alkyl groups having 1 to 6 carbon atoms; R6 may be chosen from phenol groups and aniline groups; X and Y may represent nitrogen atoms, wherein the group —NR4R5 may occupy a position chosen from the 1-, 6-, 8-, and 9-position when n is equal to 1; and A is an anionic counterion. Further disclosed herein are methods for dyeing keratinous fibers using these direct dyes.

Abstract: The present invention relates to a dye composition comprising, as direct dye, at least one dye of the azo-pyridinio-pyridone family and at least one synthetic dye different from the first dye. The invention also relates to a process for dyeing keratin fibers, e.g., human keratin fibers such as the hair, and to a multi-compartment device for implementing it.

Abstract: Process for treating dyed human keratin fibres, in which the fibres are washed with a washing composition (B) containing at least one amphoteric surfactant and at least one nonionic surfactant chosen from alkylpolyglucosides and monoglycerolated or polyglycerolated surfactants. The invention also relates to a kit for performing this process.

Abstract: Dye compositions comprising, in a medium suitable for dyeing: at least one first oxidation base chosen from 4,5-diaminopyrazole derivatives of formula (I) and addition salts thereof, at least one second cationic oxidation base chosen from monobenzenic, dibenzenic and heterocyclic oxidation bases, and the addition salts thereof, comprising at least one cationic group Z chosen from aliphatic chains optionally bearing at least one ring chosen from saturated and unsaturated rings; wherein said at least one cationic group Z is linked directly to at least one benzenic ring or to at least one heterocycle of said at least one second cationic oxidation base or linked to at least one amine functional group borne by said at least one benzenic ring or said at least one heterocycle; and at least one coupler; as well as the use of this composition for dyeing keratin fibers and the dying process using this composition.

Abstract: The present disclosure relates to a composition for dyeing keratinous fibers, comprising at least one azodiazine direct dye aminated at the 7-position. The present disclosure also relates to a process for dyeing keratinous fibers using the direct dyes described herein.

Abstract: Dye compositions comprising, in a medium suitable for dyeing: at least one first oxidation base chosen from 4,5-diaminopyrazole derivatives of formula (I) and addition salts thereof, at least one second cationic oxidation base chosen from monobenzenic, dibenzenic and heterocyclic oxidation bases, and the addition salts thereof, comprising at least one cationic group Z chosen from aliphatic chains optionally bearing at least one ring chosen from saturated and unsaturated rings; wherein said at least one cationic group Z is linked directly to at least one benzenic ring or to at least one heterocycle of said at least one second cationic oxidation base or linked to at least one amine functional group borne by said at least one benzenic ring or said at least one heterocycle; and at least one coupler; as well as the use of this composition for dyeing keratin fibres and the dying process using this composition.

Abstract: The present invention relates to a composition for dyeing keratinous fibers, containing at least one azodiazine direct dye corresponding to the following formula (I): The present invention also relates to a method for dyeing keratinous fibers using these direct dyes.

Abstract: The invention concerns an oxidation dyeing composition for keratinous fibres, in particular for human keratinous fibres and more particularly hair, comprising, in a medium suited for dyeing, at least an oxidation dyeing agent, and also at least an amphiphilic polymer including at least an ethylenically unsaturated monomer with a sulphonic group, in free form or partly or completely neutralised and further at least a hydrophobic part. The invention also concerns dyeing methods and devices using said composition.

Abstract: The invention relates to novel heteroaromatic trinuclear direct dyes, to dye compositions containing these dyes and to the process for dyeing keratin fibres using them. In particular, the invention relates to heteroaromatic trinuclear direct dyes comprising a pyridine nucleus. These novel dyes make it possible to obtain black shades that show good fastness and good stability in the dye compositions.

Abstract: The invention relates to a dye composition comprising an oxidation base of the diaminopyrazole type and a pyrazolo-azole coupler.

Abstract: The invention relates to a dye composition comprising a first oxidation base of the diaminopyrazole type, a second oxidation base of the para-phenylenediamine type containing a cyclic amino group, and a coupler.

Abstract: A composition comprising: