Abstract: Keratin fibers are colored by an agent comprising a coupler which is a m-phenylenediamine derivative of the formula (I) wherein R1 is a C1–C4 alkyl group or a C1–C4 monohydroxyalkyl group; R2 is a methyl or an ethyl group; each of R3 and R4 is independently a branched or unbranched C2–C6 hydroxyalkyl group; and a cosmetically acceptable carrier. These couplers exhibit improved toxicological and dermatological properties and permit hair colorations in a broad color spectrum with good fastness properties.

Abstract: Disclosed herein are compositions comprising at least one fluorescent dye and at least one particular associative polymer, processes using this composition, and a device therefor. Further disclosed herein is the use of a composition comprising at least one fluorescent dye and at least one particular associative polymer for dyeing a human keratin material, such as artificially dyed or pigmented hair and dark skin, with a lightening effect.

Abstract: The invention relates to a composition useful for the oxidation dyeing of keratin fibres, in particular of human keratin fibres and more particularly the hair, comprising, preferably in a medium that is suitable for dyeing, at least one oxidation dye, wherein it also comprises at least one polyoxyalkylenated carboxylic acid ether or a salt thereof, and at least one quaternized cellulose comprising at least one fatty chain. The invention also relates to the dyeing devices and processes using the said composition.

Abstract: Disclosed herein are compositions comprising at least one fluorescent dye and at least one polyol, processes using this composition and a device therefor. Further disclosed herein is the use of a composition for dyeing a human keratin material, such as artificially dyed or pigmented hair and dark skin, with a lightening effect, comprising at least one fluorescent dye and at least one polyol.

Abstract: The present disclosure relates to a method of dyeing human keratin materials with a lightening effect with a composition comprising, in a cosmetically acceptable medium, at least one fluorescent dye that is soluble in the cosmetically acceptable medium and at least one surfactant chosen from amphoteric surfactants and nonionic surfactants. The present disclosure also relates to compositions comprising at least one particular fluorescent dye that is soluble in the cosmetically acceptable medium and at least one surfactant chosen from amphoteric surfactants and nonionic surfactants, and also to processes using these compositions, and devices for these compositions.

Abstract: The invention relates to a method for dyeing keratin fibers, especially human hair. The inventive method comprises the following steps: optionally applying a pretreatment agent M1 to the fiber, using a dye M2 on the fiber which is optionally mixed immediately before application to the fiber from a component M2a, containing at least one oxidative dye pre-product of the developer type and/or an indole and/or indole derivative and a component M2b, containing an oxidative dye and/or an enzyme. If desired, a third agent M3 is added to the individual agents M2a or M2b before mixing them or to the mixture M2, and said dye M2 is rinsed from the fiber after a period of 5–10 minutes. At least one of the agents M1, M2a, M2b or M3 contains a compound from the vitamin B6 group. The invention further relates to hair pretreatment agents, to agents for dyeing keratin fibers, to their packing in corresponding kits and to the use thereof.

Abstract: The invention concerns a composition for dyeing keratinous fibres, in particular human keratinous fibres and more particularly hair, comprising, in a medium suitable for dyeing, at least an oxidation dye, at least a C12–C30 fatty alcohol, at least an oxyalkylene or polyglycerol C12–C30 fatty alcohol and further 2 to 15 wt. % and preferably 5 to 10 wt. % of a mixture of glycerine (A) and a polyol other than glycerine (B) in an (A)/(B) weight ratio >1. The invention also concerns dyeing methods and devices using said composition.

Abstract: A process for dyeing keratin fibers that have previously undergone a permanent reshaping process, comprising applying at least one composition comprising, in a cosmetically acceptable medium, at least one fluorescent dye that is soluble in the medium. The use of the at least one composition may makes it possible to dye a human keratin material, and further, for example, artificially dyed or pigmented hair, with a lightening effect.

Abstract: The present disclosure relates to a cosmetic composition comprising at least one fluorescent dye comprising at least one fluorescent compound, and at least one cationic polymer with a charge density of at least 1 meq/g; processes that incorporate this cosmetic composition and to a kit comprising this cosmetic composition. The present disclosure also relates to the process for dyeing human keratin materials, including artificially dyed or pigmented hair and dark skin, with a lightening effect, comprising applying to the keratin materials a cosmetic composition comprising at least one fluorescent dye comprising at least one fluorescent compound and at least one cationic polymer with a charge density of at least 1 meq/g.

Abstract: N-Aryl-4,5-diaminopyrazole of formula (I) or a physiologically compatible salt thereof of an organic or inorganic acid wherein R1 and R2 independently of each other denote a hydrogen atom, a straight-chain or branched C1–C6-alkyl group, a hydroxyl group, a straight-chain or branched C1–C6-monohydroxyalkyl group, a straight-chain or branched C3–C6-dihydroxyalkyl group, a straight-chain or branched C1–C6-alkoxy group, a straight-chain or branched C1–C6-hydroxyalkoxy group, a straight-chain or branched C3–C6-dihydroxyalkoxy group, an amino group, a C1–C4-monoalkylamino group, a di(C1–C4)-alkylamino group, a halogen atom, a difluoromethyl group or a trifluoromethyl group; Y stands for a nitrogen atom or a C-R3 group, wherein C is a carbon atom of the aromatic ring and R3 is a hydrogen atom, a halogen atom, a straight-chain or branched C1–C6-alkyl group, a straight-chain or branched C1–C6-hydroxyalkyl group, a straight-chain or branched C1–C6-alkoxy group, a straight-chain or branched C2-C6-hydroxyalkoxy grou

Abstract: The present disclosure relates to a process for dyeing keratin materials with compositions comprising, in a medium that is suitable for dyeing, at least one ninhydrin derivative, which may optionally be combined with at least one compound comprising at least one labile hydrogen. Further disclosed herein are dying compositions, multi-component hair dye compositions, and a multi-compartment kits.

Abstract: The invention relates to a composition comprising at least one fluorescent dye and at least one particular sequestering agent, and also to processes and a device for using these compositions. The invention similarly relates to the use of a composition comprising at least one particular fluorescent dye and at least one particular sequestering agent, to dye with a lightening effect human keratin materials and more particularly artificially dyed or pigmented hair, and colored skin.

Abstract: The subject of the invention is novel pyrazolo[3,2-c]-1,2,4-triazoles of formula (I) which are useful for the oxidation dyeing of keratinous fibers, in particular human hair, the compositions containing these compounds and the dyeing method using them. in which R1 represents a hydroxyl group or a C1–C4 alkyl group substituted with at least one hydroxyl radical, and R2 represents an aryl group which may be substituted with at least one radical chosen from the group consisting of halogen, nitro, cyano, alkyl, hydroxyl, alkoxy, amino, alkylamino, dialkylamino, acylamino, sulfonamido, alkylthio, alkoxycarbonyl, carboxy and sulfo radicals.

Abstract: The present invention generally relates to a hair pre-treatment anti-penetration composition comprising an efficient amount of at least one oxyethylenated copolymer. The invention also relates to a method for limiting the penetration into the skin and/or the keratin fibres of at least one dye, contained in a hair dyeing composition, involving the pre-treatment application on the hair of such an anti-penetration composition, before the hair dye process.

Abstract: In one embodiment, the disclosure relates to a composition for dyeing keratin fibres, for example, human keratin fibres such as the hair, comprising at least one para-phenylenediamine derivative substituted with a diazacyclohexane or diazacycloheptane ring, the nitrogen in position 4 of which is a quaternary ammonium. The present disclosure may make it possible, for example, to obtain at least one of chromatic, strong, relatively unselective, fast coloration of keratin fibres.

Abstract: The present disclosure relates to compositions comprising at least one soluble fluorescent dye and at least one compound comprising an acid functional group, and to processes using this composition. It likewise relates to a method of using compositions comprising, in a cosmetically acceptable medium, at least one soluble fluorescent dye and at least one compound comprising an acid functional group for dyeing human keratin materials, such as artificially dyed and/or pigmented hair and dark skin, with a lightening effect.

Abstract: A composition comprising, in a medium that is suitable for dyeing, at least one ninhydrin derivative chosen from compounds of formula (I) and tautomers thereof: wherein: A represents a fused or non-fused, at least 6-membered aromatic mono- or polycyclic group, possibly comprising at least one hetero atom chosen from nitrogen, oxygen, sulphur, and phosphorus atoms, a dyeing process using the composition, and a multi-component coloring agent comprising the 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: A composition and method for dyeing keratin materials, comprising, in a medium that is suitable for dyeing, at least one compound of formula (I) wherein X is chosen from sulphur atoms and selenium atoms, R is chosen from hydrogen, C1–C9 alkyl groups, cyano groups, halo groups, C1–C6 alkoxy groups, amino groups, (C1–C6 alkyl)amino groups, hydroxy(C1–C6 alkyl)amino groups, tri(C1–C6 alkyl)ammonio groups, imidazolyl groups, pyridinyl groups, thio groups, (C1–C6 alkyl)thio groups, thio(C1–C6 alkyl) groups, (C1–C6 alkyl)carbonyl groups, hydrogenocarbonyl groups, hydroxycarbonyl groups, (C1–C6 alkoxy)carbonyl groups, nitro groups, sulphonato groups, and corresponding protonated groups, and aromatic groups. Dyeing kits are also disclosed.

Abstract: The present disclosure relates to the process, for dyeing keratin materials, comprising applying to the fibers a composition comprising, in a medium appropriate for dyeing, at least one ninhydrin derivative, which may optionally be combined with at least one compound comprising a labile hydrogen. Further disclosed herein is a multi-component hair dye composition, and a multi-compartment kit comprising same.

Abstract: Use of an extract of the plant Myrsine africana in oxidation dyeing for dyeing keratin fibers, a novel composition comprising this plant extract, a process for the oxidation dyeing of keratin fibers using this composition, as well as the colored products obtained using the composition.

Abstract: The present disclosure relates to the process, for dyeing keratin materials, comprising applying to the keratin materials a composition comprising, in a medium appropriate for dyeing, at least one polycyclic aromatic vicinal trione, which may be optionally combined with at least one compound comprising a liable hydrogen. Further disclosed herein is a cosmetic dyeing composition, a multicomponent hair dye composition, and a multicompartment kit comprising the same.

Abstract: The invention concerns novel dyeing compositions for keratinous fibers comprising at least a paraphenylenediamine derivative with pyrrolidinyl group as oxidation base, a dyeing method and a dyeing kit using said composition.

Abstract: Disclosed are processes and compositions for dyeing keratin materials comprising, in a medium that is suitable for dyeing, at least one ninhydrin compound of formula (I) wherein, A comprises an at least 12-membered polycycle, such as those chosen from anthracenyl, tetracenyl, phenanthrenyl, and azulenyl groups. Hair dyeing processes and kits using these compositions are also disclosed.

Abstract: An oxidation dye composition for keratin fibres, for example, human keratin fibres such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and at least one nonionic amphiphilic polymer containing at least one fatty chain and at least one hydrophilic unit. Also disclosed are processes and dyeing kits using the oxidation dye composition.

Abstract: The present invention relates to a dye composition comprising at least one oxidation base and at least one coupler of the 2,3,5-triaminopyridine type. This composition may be useful for dyeing keratin fibers, such as the hair. Also disclosed are a process for dyeing keratin fibers and a multi-compartment dyeing kit using the claimed dye composition. Such a composition can make it possible to obtain strong, uniform dyeing results between the end and the root, which are resistant to external agents, while at the same time being capable of giving varied shades, for example, in fundamental shades such as chestnut, grey or black shades.

Abstract: The invention relates to the use for of compositions dyeing keratin materials containing, in a medium that is suitable for dyeing, at least one compound of formula (I) in which X and Y, independently of one another, are chosen from a CH group and a nitrogen atom, R is chosen from aromatic mono- or poly-cyclic groups with fused or non-fused rings, wherein the groups have at least 5 members and optionally comprise at least one hetero atom chosen from nitrogen, oxygen, sulphur and phosphorus. Processes and kits using these compositions are also disclosed.

Abstract: The invention concerns a ready-to-use composition for oxidation dyeing of keratinous fibres, and in particular human keratinous fibres such as hair comprising, in a medium suitable for dyeing, 3-methyl 4-amino phenol as oxidation base, and at least an enzyme such as laccase, as well as the dyeing method using said 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: A hair coloring composition contains an oxidative hair dye and at least one antioxidant agent selected from the group consisting of rosmarinus officinalis, origanum vulgare, camellia sinensis, camellia oleifera, salvia officinalis, apium graveolen, thymus vulgaris, rosa canina and coriandrum sativum in combination with a suitable diluent or carrier. The hair coloring compositions are gentler on the skin and hair in that they reduce the effects or the oxidising agent on the hair and skin.

Abstract: The present disclosure relates to a dyeing composition for human keratinous fibers, such as the hair, comprising, in a suitable dyeing medium, at least one oxidation dye, and at least one dicationic compound. The disclosure further relates to the dyeing methods and dyeing kit using the dye composition.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers and more particularly the hair, comprising, in a medium that is suitable for dyeing, at least one oxidation dye, characterized in that it comprises more than 5% by weight of the composition of at least one oxyethylenated rapeseed fatty acid amide. The invention also relates to the dyeing processes and devices using the said composition.

Abstract: A composition comprising at least one fluorescent dye and at least one insoluble conditioning agent; and processes and multicompartment kits comprising the composition. This disclosure also relates to the use of this composition for dyeing a human keratin material, and, for example, artificially dyed or pigmented hair and/or dark skin, with a lightening effect.

Abstract: Disclosed herein is a composition comprising at least one fluorescent dye and at least one insoluble polyorganosiloxane conditioning polymer, processes using this composition, and a device. Further disclosed herein is the use of compositions comprising at least one fluorescent dye and at least one insoluble polyorganosiloxane conditioning polymer, for dyeing human keratin materials, for example artificially dyed and/or pigmented hair and dark skin, with a tightening effect.

Abstract: The invention concerns an oxidation dyeing composition for keratinous fibers, and in particular human keratinous fibers such as hair comprising, in a medium suited for dyeing: as first coupling agent at least a 3,5-diaminopyridine derivative suitably selected; and as second coupling agent at least a meta-phenylenediamine, and/or one of its addition salts with an acid; and at least an oxidation base such as para-phenylenediamine and/or one of its addition salts with an acid. The invention also concerns the dyeing method using said composition.

Abstract: The invention concerns an oxidation dyeing composition for keratinous fibers, and in particular human keratinous fibers such as hair, comprising, in a medium suited for dyeing, (a) as first coupling agent at least a 3,5-diamino-pyridine derivative suitably selected; (b) and as second coupling agent at least resorcin (1,3-dihydrobenzene) and/or one of its addition salts with an acid; (c) and as third coupling agent at least an oxidation base such as para-phenylenediamine and/or one of its addition salts with an acid. The invention also concerns the dyeing method using said composition.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, for example, human keratin fibers such as the hair, comprising at least one oxidation base chosen from 4,5-diamino-1-(?-hydroxyethyl)-1H-pyrazole and 4,5-diamino-1-(?-methoxyethyl)-1H-pyrazole, and the addition salts therof and at least one coupler chosen from 6-hydroxyindole and the addition salts therof. The invention also relates to a dyeing process using this composition.

Abstract: The object of the present patent application are 3-aminophenol derivatives of formula (I) or the physiologically compatible, water-soluble salts thereof and colorants based on a developer-coupler combination containing these compounds.

Abstract: Agent for oxidative dyeing of keratin fibers based on developers and couplers and containing at least one aldehyde of general formula (I) or (II) as well as the use of the aldehydes of formula (I) or (II) for increasing the color intensity of oxidative colorants and/or for shortening the time of exposure to oxidative colorants.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, preferably of human keratin fibers and more particularly the hair, containing, preferably in a medium that is suitable for dyeing, at least one oxidation dye, wherein it also contains at least one polyoxyalkylenated carboxylic acid ether or a salt thereof, at least one mono- or polyglycerolated surfactant and at least one nonionic oxyalkylenated surfactant. The invention also relates to the dyeing devices and processes using the composition.

Abstract: The invention concerns an oxidation dyeing composition for keratinous fibers, in particular human keratinous fibers, and more particularly hair, comprising, in a medium suitable for oxidation dyeing, at least an oxidation colouring agent, and furthermore at least a cationic associative polyurethane. The invention also concerns dyeing methods and devices using said composition.

Abstract: The disclosure relates to novel para-phenylenediamine derivatives containing a cyclic diaza group, substituted with a cationic radical, as well as to the dye compositions comprising them, and to the method of dyeing keratin fibers using these compositions. The present invention may make it possible to obtain a chromatic, strong, relatively unselective and fast coloration on keratin fibers.

Abstract: Compositions for dyeing keratinic fibers, which contain p-phenylene-diamine derivative substituted by an imidazolyl group, the use of these compounds for dyeing keratinic fibers and a process for dyeing keratinic fibers using these compounds.

Abstract: The object of the present patent application are agents for dyeing keratin fibers based on a developer-coupler combination and characterized in that they contain at least one 3-aminophenol derivative of formula (I) or a physiologically compatible, water-soluble salt thereof wherein R1 denotes a group of the formula ?or a group of the formula ?as well as novel 3-aminophenol derivatives.

Abstract: Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein R1 and R2 are each independently selected from hydrogen atoms, a C1 to C5 alkyl or hydroxyalkyl group, or R1 and R2 together with the nitrogen atom to which they are attached form a 5 or 6 member cyclic ring optionally containing one or more additional atoms selected from O, N or S atoms, and n is equal to 1 or 2, with the proviso that when n is equal to 2 only one of R1 and R2 may be hydrogen.

Abstract: The object of the invention are (p-aminohydroxyphenyl)acrylamide derivatives of general formula (I) or the physiologically tolerated, water-soluble salts thereof and oxidative coloring agents for keratin fibers, containing these compounds.

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 invention relates to an oxidation-dyeing composition for keratin fibers, in particular for human keratin fibers and more specifically hair, comprising at least one oxidation dye and a cationic poly(vinyllactam) in a medium suitable for dyeing. The invention also relates to the dyeing methods and devices using said composition.

Abstract: The invention relates to a composition for oxidation dyeing of keratinous fibers, and in particular human keratinous fibers, such as hair, comprising, in a medium appropriate for dyeing, at least one oxidation base, 2-amino-4-N-(?-hydroxyethyl)aminoanisole as coupler, and at least an enzyme of the laccase type, as well as the dyeing method using this composition.

Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, and (2) a combination comprising at least one cyclohomopolymer of dialkyldiallylammonium and at least one other particular quaternary polyammonium. Processes comprising such oxidation dyeing compositions.