Abstract: The invention relates to a composition comprising at least i) one coupler of formula (I), and also addition salts thereof, optical or geometrical isomers thereof, tautomers thereof or solvates thereof: in which formula (I): X represents a halogen atom, a COOH group or an amido group —C(O)—NR5R6 with R5 and R6, which may be identical or different, representing a hydrogen atom or an alkyl group, R1 to R4, which may be identical or different, represent a hydrogen or halogen atom, an alkyl group or an alkoxy group, and ii) at least one oxidation base. The invention also relates to a process for dyeing keratin fibres using said composition.

Abstract: The invention relates to a composition comprising: i) at least one oxidation base, preferably of heterocyclic and/or para-phenylenediamine type; and ii) at least one heteroaryl coupler of formula (I), with R1, R2, R3, A and X as defined in the description. The invention also relates to a process for dyeing keratin fibres using ingredients i) and ii); to a kit comprising ingredients i) and ii); and to the use of ingredient i) combined with ii) for dyeing keratin fibres. The composition of the invention leads to particularly powerful, chromatic and sparingly selective colourings.

Abstract: The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, in which the said fibres are treated using one or more cosmetic compositions comprising a) one or more ortho-diphenols, b) one or more organic salts of titanium and of at least one carboxylic acid, and c) optionally one or more chemical oxidizing agents such as hydrogen peroxide or one or more hydrogen peroxide generating systems.

Abstract: The present invention relates to a method for dyeing keratinous fibres, in particular human keratinous fibres, such as the hair, in which the said fibres 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: Composition comprising a non-nitrogenous zinc salt and a particular cationic surfactant The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one particular zinc salt and at least one cationic surfactant chosen from particular quaternary ammonium salts, in a specific weight ratio. Another subject of the invention relates to a process for treating keratin fibers, using such a composition, and to the use of such a composition, preferably in the form of a leave-on care product, for conditioning keratin fibers and protecting their artificial color from fading.

Abstract: The invention relates to a process for dyeing keratin fibres, comprising the use of one or more metal catalysts and of a composition (A) comprising: —one or more oxidizing agents, and —at least one aminobenzimidazole oxidation base of formula (I) in which the radicals R1 to R5 represent, independently of each other, a hydrogen atom; a halogen atom; a C1-C6 alkyl radical; a C1-C6 alkoxy radical; a C1-C6 dialkylamino radical; a carboxylic radical (—COOH); a sulfonic radical (—S03H); a phenyl radical; a sat orated or unsaturated 5- to 7-membered heterocyclic radical, comprising one or more heteroatoms chosen from N, O and S.

Abstract: The invention relates to a process for dyeing keratin fibres, comprising the use of one or more metal catalysts and of a composition (A) comprising: —one or more oxidizing agents, and —at least one monoaminobenzene of formula (I), or an addition salt or solvate thereof in which the radicals R1 to R5 represent, independently of each other: a hydrogen atom; a halogen atom, a C1-C6 alkyl radical, a C1-C6 alkoxy radical, a carboxylic radical (—COOH), a sulfonic radical (—SO3 H); two of the adjacent radicals R1 to R5 possibly forming, with the carbon atoms that bear them, a saturated or unsaturated 5- to 7-membered ring, optionally comprising from 1 to 2 heteroatoms, preferably oxygen, the said ring being optionally fused with a saturated or unsaturated 5- to 6-membered ring; on condition that at least one of the radicals R1 to R5 represents an optionally substituted alkoxy radical and preferably at least one of the other radicals R1 to R5 is a hydrogen atom.

Abstract: The present invention relates to a method for colouring keratin fibres, comprising: —a first step of applying to the fibres a dyeing composition (a) comprising one or more dyes chosen from chromene dyes and chroman dyes, and one or more liquid organic compounds having a Hansen so lubility parameter ?H of less than or equal to 16 Mpa1/2, then—a second step of applying to the fibres an oxidizing composition (b) comprising one or more oxidizing agents and one or more alkaline agents, one or more metal salts and/or metal oxides being present in at least one of the compositions (a) and (b), and/or being applied during an additional step by means of a composition (c). The invention likewise relates to a kit suitable for implementing this method.

Abstract: Dyeing process using a natural dye on keratin fibers that have undergone permanent reshaping The present invention relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, in which: a) an aqueous alkaline composition comprising one or more alkaline agents in an amount such that the pH of the composition is greater than at least 10 is applied to the said fibers, or a reducing composition comprising one or more reducing agents and then an oxidizing composition are applied to the said fibers, b) the said fibers are optionally rinsed, c) optionally, the treatment is neutralized, and the fibers are washed with shampoo and rinsed, d) optionally, the fibers are dried or left to dry, e) a dye composition comprising, in a cosmetically acceptable medium, one or more natural dyes is applied to the said fibers, f) optionally, the fibers are washed and rinsed, g) the fibers are dried or left to dry.

Abstract: The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one non-nitrogenous zinc salt and at least one starch, in a weight ratio of the amount of starch to the amount of zinc element ranging from 0.01 to 20. Another subject of the invention relates to a process for treating keratin fibers, using such a composition, and to the use of such a composition, preferably in the form of a leave-on care product, for conditioning keratin fibers and for protecting their artificial color from fading.

Abstract: The present invention relates to a process for dyeing hair using at least one water-insoluble silicate, at least one compound of formula (I), in which Y represents a C1-C4 hydroxyalkyl group or a C1-C4 hydroxyalkyloxy radical, n denotes an integer ranging from 0 to 5, X, which may be identical or different, represents a C1-C4 alkyl radical or a halogen; and at least one hydroxylated aliphatic solvent comprising therein from 2 to 6 carbon atoms.

Abstract: One subject of the present invention is a dye composition comprising benzyl alcohol, at least one C1-C4 monoalcohol and at least one anthraquinone direct dye of formula (I) or azomethine direct dye of formula (II). The composition of the invention makes it possible to obtain colorings that are intense and resistant.

Abstract: The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one non-nitrogenous zinc salt and at least one amino silicone, in a weight ratio of the amount of amino silicone(s) to the amount of zinc element ranging from 0.01 to 5, preferably from 0.2 to 3. Another subject of the invention relates to a treatment process for keratin fibers, using such a composition, and the use of such a composition, preferably in the form of a leave-in care product, for conditioning keratin fibers and protecting the artificial color thereof against fading.

Abstract: Disclosed herein is a cosmetic composition comprising, in a physiologically acceptable aqueous medium: at least one agent for protecting keratin fibers; at least one aromatic alcohol; and at least one aromatic carboxylic acid or a salt thereof. Also disclosed herein is a method for protecting keratin fibers against the action of atmospheric agents comprising applying the composition above to fibers. Further disclosed herein is a method for the post-treatment of an oxidation dyeing or of a direct dyeing operation on keratin fibers comprising applying the composition described above to the fibers.

Abstract: The present disclosure relates to a cosmetic composition for keratin fibers, for example, human keratin fibers such as hair, comprising: at least one anionic surfactant (A) comprising, in its structure, at least one group chosen from sulphate, sulphonate, and phosphate groups; at least one carboxylic anionic surfactant (B) other than the at least one anionic surfactant (A); at least one surfactant (C) chosen from amphoteric and zwitterionic surfactants; at least one alkyl(poly)glycoside non-ionic surfactant (D); at least one cationic polymer (E); at least one zinc salt (F); and optionally at least one UV-screening agent (G); and further wherein the weight ratio of the total amount of the surfactants (A), (B), (C), and (D) to the amount of zinc element of the at least one zinc salt has a value of less than 30.

Abstract: Dyeing process using a natural dye on keratin fibres that have undergone permanent reshaping The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, in which: a) an aqueous alkaline composition comprising one or more alkaline agents in an amount such that the pH of the composition is greater than at least 10 is applied to the said fibres, or a reducing composition comprising one or more reducing agents and then an oxidizing composition are applied to the said fibres, b) the said fibres are optionally rinsed, c) optionally, the treatment is neutralized, and the fibres are washed with shampoo and rinsed, d) optionally, the fibres are dried or left to dry, e) a dye composition comprising, in a cosmetically accept able medium, one or more natural dyes is applied to the said fibres, f) optionally, the fibres are washed and rinsed, g) the fibres are dried or left to dry.

Abstract: Keratin fibers, in particular human hair and especially artificially dyed human hair, are protected against the action of atmospheric agents and especially against the action of light by application to the keratin fibers/hair of a composition containing at least one protective agent having a log P of less than or equal to 6, followed by the application to the fibers hair of a heating iron at a temperature of greater than or equal to 60° C.

Abstract: Composition comprising a non-nitrogenous zinc salt and a particular cationic surfactant The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one particular zinc salt and at least one cationic surfactant chosen from particular quaternary ammonium salts, in a specific weight ratio. Another subject of the invention relates to a process for treating keratin fibres, using such a composition, and to the use of such a composition, preferably in the form of a leave-on care product, for conditioning keratin fibres and protecting their artificial colour from fading.

Abstract: The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one non-nitrogenous zinc salt and at least one amino silicone, in a weight ratio of the amount of amino silicone(s) to the amount of zinc element ranging from 0.01 to 5, preferably from 0.2 to 3. Another subject of the invention relates to a treatment process for keratin fibres, using such a composition, and the use of such a composition, preferably in the form of a leave-in care product, for conditioning keratin fibres and protecting the artificial colour thereof against fading.

Abstract: The present invention relates to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one non-nitrogenous zinc salt and at least one starch, in a weight ratio of the amount of starch to the amount of zinc element ranging from 0.01 to 20. Another subject of the invention relates to a process for treating keratin fibres, using such a composition, and to the use of such a composition, preferably in the form of a leave-on care product, for conditioning keratin fibres and for protecting their artificial colour from fading.