Abstract: p-Diaminobenzene derivatives of general formula (I) or physiologically tolerated water-soluble salts thereof and their use as developers in oxidation colorants for keratin fibers.

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, (2) at least one fatty alcohol comprising more than twenty carbon atoms, (3) optionally at least one fatty alcohol having at most twenty carbon atoms, (4) at least one oxyalkylenated nonionic surfactant with an HLB greater than 5, and (5) optionally at least one oxyalkylenated surfactant with an HLB at most equal to 5, in a proportion such that the weight ratio [(4)]/[(2)+(3)+(5)] is less than or equal to 1:1. Processes comprising such oxidation dyeing compositions.

Abstract: Dyes, containing N-benzyl-p-phenylenediamine derivatives of the general formula (I) or their physiologically compatible salts, for keratin fibers, and new N-benzyl-p-phenylenediamine derivatives.

Abstract: Compositions for the oxidation dyeing of keratin fibers, comprising, as oxidation base, at least one para-aminophenol, of formula (I) and/or at least one acid-addition salt thereof: in which: R1 represents a hydrogen atom, a linear or branched C1-C4 alkyl radical or a C1-C4 trifluoroalkyl radical, R2 and R3 independently represent a hydrogen atom, a C1-C4 alkyl radical or a C1-C4 monohydroxyalkyl radical, and X, Y and Z independently represent a carbon, nitrogen, oxygen or sulphur atom, wherein the bonds XY and YZ are single or double bonds; a dyeing process using these compositions, novel para-aminophenols and a process for their preparation.

Abstract: The invention concerns novel pyrazole derivatives comprising at least a cationic group Z, Z being selected among the quaternized aliphatic chains, aliphatic chains comprising at least a saturated quaternized cycle, and aliphatic chains comprising at least an unsaturated quaternized cycle, their use as oxidation base for dyeing keratin fibres, dyeing compositions containing them, and dyeing methods using them.

Abstract: The present invention is directed to a composition for a new 3-nitro 4-aminophenol of the general formula: 1

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, containing a first oxidation base chosen from 1,8-bis(2,5-diaminophenoxy)-3,5-dioxaoctane and acid-addition salts thereof, at least one second selected oxidation base and at least one coupler; as well as to the oxidation dyeing process using this composition and multicompartment devices/kits.

Abstract: Compositions for oxidation dyeing keratinous fibers, for example, human keratinous fibers such as hair, comprising at least one oxidation base and at least one coupler chosen from N-(2-hydroxybenzene)carbamate and N-(2-hydroxybenzene)urea compounds and their acid addition salts of formula (I) and processes comprising such compositions.

Abstract: The present invention relates to a composition for coloring keratin fibers containing at least one dye precursor and a choline-based oxidase system. The present invention also relates to a process for coloring keratin containing fibers using the composition of the present invention.

Abstract: A method for permanently dyeing hair which comprises subjecting said hair to a number of treatments, having a set time interval between each two consecutive such treatments, wherein each treatment comprises steps a.) and b.

Abstract: Compositions for oxidation dyeing of keratinous fibers, for example, human keratinous fibers such as hair, further such as human hair, comprising, in a medium suitable for dyeing, at least one oxidation dye, at least one cationic amphiphilic polymer comprising at least one fatty chain, and a combination comprising: (I) at least one compound chosen from oxyalkylenated and glycerolated fatty alcohols and (II) at least one hydroxylated solvent, wherein the hydroxylated solvent may have a molecular weight of less than 250, and wherein the weight ratio of (I) to (II) is greater than 1:1 and dyeing processes and devices, such as kits, comprising such compositions.

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 semi-permanent dye system comprising at least one solubilized vat dye, an aqueous carrier, and substantially no chemical oxidant.

Abstract: The p-aminophenol derivative compounds of formula (I), or their physiologically compatible water-soluble salts: are useful as developer compounds in oxidation dye compositions for keratin fibers. Oxidation dye compositions for keratin fibers, including hair, and methods of dyeing hair using the p-aminophenol derivative compounds are also described.

Abstract: The present invention relates to dyeing compositions containing, in a medium appropriate for dyeing, at least one oxidation dye precursor and/or one or more couplers, a ketose as reducing agent and at least one laccase as oxidizing agent, to the use of the compositions for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, to dyeing processes using the compositions, and to dyeing kits using the compositions.

Abstract: Compositions for the oxidation dyeing of keratin fibers, containing at least one oxidation base and at least one coupler chosen from indolizine derivative comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring, and aliphatic chains comprising at least one quaternized unsaturated ring. Methods of using these cationic indolizine derivatives as couplers for the oxidation dyeing of keratin fibers, in combination with at least one oxidation base, and to dyeing processes using them. Some of these cationic indolizine derivatives are novel.

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: Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein X is selected from halogen and R2SO4; R3 is selected from C1 to C2 alkyl or hydroxyethyl; R2 is selected from C1 to C22 alkyl and C1 to C22 mono and dihydroxyalkyl; and R is selected from of C1 to C16 alkyl, C1 to C10 hydroxyalkyl, C1 to C6 alkoxyalkyl and benzyl.

Abstract: A hair dye composition comprising a primary intermediate, a coupler and oxidant and water wherein the primary intermediate is a compound of the formula I or II with the proviso that when the primary intermediate has the formula II, the coupler has the formula III

Abstract: Primary intermediates useful hair coloring systems comprise 2-arylaminomethyl-4-aminophenols. The invention provides new 2-arylaminomethyl-4-aminophenol compounds of Formula (1): wherein R is a moiety selected from formulae (2), (3) or (4) wherein R1, R2, R3, R4 and R5 are each independently selected from a hydrogen atom, a halogen atom, a hydroxy group, an amino group, a C1-C6 alkyl or haloalkyl group, a C1-C6 alkoxy or haloalkoxy group, and a nitrile group, and R6 is a hydrogen atom, a halogen atom, a C1-C4 alkyl or a C1-C4 alkoxy group.

Abstract: The oxidation dye precursor-containing composition for oxidative dyeing of hair, includes from 0.

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 subject of the invention is a composition for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair, comprising at least one oxidation base and, as coupler, at least one 2-acylaminophenol of formula (I) comprising at least one cationic group Z of formula (II), their use as coupler for the oxidation dyeing of keratinous fibers, oxidation dyeing methods using them, as well as novel cationic 2-acylaminophenols of formula (I′).

Abstract: Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): wherein R is selected from the group consisting of C1 to C2 alkyl and hydroxyethyl; R1 is selected from the group consisting of a hydrogen, hydroxy, nitro, halogen, C1 to C5 alkyl or haloalkyl, C1 to C5 alkoxy or cycloalkoxy, C1 to C5 hydroxyalkyl and C1 to C5 hydroxyalkoxy; Ar is an aromatic group, preferably an aromatic group selected from the group consisting of a furyl, thienyl, pyridyl, phenyl, 2,3-dihydro-benzo[1,4]dioxin-5 or -6-yl or benzo[1,3]dioxol-4 or -5-yl group; and y=1 to 3.

Abstract: Primary intermediate for hair coloring compositions for oxidative dyeing of hair is 4-amino-2-(1-hydroxy-ethyl)-phenol.

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 an oxidation dye composition for keratin fibers, in particular for human keratin fibers such as the hair, this composition comprising, in a medium which is suitable for dyeing, at least one oxidation dye precursor and optionally one or more couplers, and also an anionic amphiphilic polymer containing at least one hydrophilic unit, and at least one allyl ether unit containing a fatty chain. The invention also relates to dyeing processes and dyeing devices using the oxidation composition.

Abstract: Primary intermediates useful hair coloring systems comprise quaternized pyrrolidine compounds. The invention provides new quaternized pyrrolidine of Formula (1): wherein X is Cl, Br, I, or R3 S04; R is a C1 to C22 alkyl group or a C1 to C22 mono or dihydroxyalkyl group; R1 and R2 are each independently a C1 to C4 alkyl group; R3 is a C1 to C22 alkyl group or a C1 to C22 mono or dihydroxyalkyl group; R4 is a hydrogen atom, a C1 to C5 alkyl group or such an alkyl group substituted with one or more hydroxy or amino moieties; and R5 is a hydrogen atom or a hydroxy group.

Abstract: The invention relates to a ready-to-use composition for dyeing keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one cationic direct dye and at least one auto-oxidizable dye, as well as to the dyeing process using this composition.

Abstract: The invention relates to novel methylene-dioxybenzenes comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring and aliphatic chains comprising at least one quaternized unsaturated ring, to their use as oxidation dye precursors for the oxidation dyeing of keratin fibres, to dye compositions containing them and to oxidation dyeing processes using them.

Abstract: Reactive dyes of the formula I where a is 1 or 2, b is 0 or 1, Y is vinyl or a radical of the formula C2H4Q, where Q is an alkali-detachable group, L3 is a direct bond or a bridge member of the formula CO—NH—M1, where M1 is C2-C6-alkylene with or without interruption by 1 or 2 unadjacent oxygen atoms, imino or C1-C4-alkylimino groups, A1 is hydroxysulfonyl or a radical of the formula SO2Y, A2 is hydrogen, hydroxysulfonyl, methoxy, chlorine, bromine or carboxyl, W is either in case 1) the radical of a coupling component, of a monoazo dye or additionally, when b=0, of a disazo dye, which may each bear further fiber-reactive groups, or  in case 2) the radical of a chromophore which optionally has further reactive groups, L1 and L2 are each a bridge member, are useful for hair dyeing and for use in cosmetic preparations for dyeing hair.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, and in particular of human keratin fibers such as the hair, comprising at least one oxidation base and, as coupler, at least one 2-hydroxynaphthalene of formula (I) comprising at least one cationic group Z of formula (II), to their use as couplers for the oxidation dyeing of keratin fibers, to oxidation dyeing processes using them and to novel cationic 2-hydroxynaphthalenes of formula (I′).

Abstract: Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): 1

Abstract: Primary intermediates for hair coloring compositions for oxidative dyeing of hair are compounds of the formula (1): 1

Abstract: A composition for the oxidation dyeing of keratinous fibers such as hair, comprises at least one para-phenylenediamine derivative as oxidation base, in combination with at least one coupler of meta-aminophenol or meta-diphenol type, and the dyeing process employing this composition.

Abstract: The invention relates to a ready-to-use composition for the oxidation dyeing of keratin fibers, especially human keratin fibers, such as the hair, having, in a medium suitable for dyeing, at least one oxidation base, at least one coupler chosen from substituted meta-diphenols, and at least one enzyme of 2-electron oxidoreductase type in the presence of at least one donor for the enzyme, with the composition being free from any additional coupler chosen from substituted meta-phenylenediamines; the invention also relates to the dyeing process using this composition.

Abstract: Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula at least one coupler comprising a compound of the formula (1): wherein R is selected from of C1 to C2 alkyl and hydroxyethyl, R1 and R2 are each independently selected from the group consisting of C1 to C5 alkyl, C3 to C6 cycloalkyl, C1 to C5 alkoxy, C1 to C5 hydroxyalkyl, C1 to C5 hydroxyalkoxy, or R1 and R2 together with the carbon atom to which they are attached form a C3 to C6 cycloalkyl group.

Abstract: Oxidation colorants for coloring keratinous fibers comprising a primary intermediate and a secondary intermediate, wherein the primary intermediate comprises: a) a pyrimidine derivative wherein the pyrimidine ring is substituted with two to four amino groups and zero to two hydroxy groups; and b) 1-(2′-hydroxyethyl)-2,5-diaminobenzene or 2-(2′-hydroxyethylamino) -5-aminotoluene.

Abstract: Novel compositions for the oxidation dyeing of keratin fibers, comprising at least one oxidation base and at least one specific 3-aminopyrazoline as coupler, and dyeing process and dyeing kit using this composition.

Abstract: The invention relates to novel monobenzenic dyes including at least one cationic group Z, Z chosen from quaternized aliphatic chains, aliphatic chains including at least one quaternized saturated ring and aliphatic chains including at least one quaternized unsaturated ring, to their use as oxidation-dye precursors for the oxidation-dyeing of keratin fibers, to dye compositions containing them and to oxidation-dyeing processes using them.

Abstract: The subject-matter of the present invention is a composition for the oxidation dyeing of keratinous fibres, in particular of human keratinous fibres, such as hair, comprising 2-chloro-6-methyl-3-aminophenol as coupler, in combination with at least two oxidation bases which are different from one another, and the dyeing process employing this composition with an oxidizing agent.

Abstract: The invention relates to a composition for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, having, in a medium suitable for dyeing, at least one oxidation base and at least one specific cationic dye as direct dye, as well as to the dyeing process using this composition.

Abstract: An oxidation dye composition for keratin fibres and in particular for human keratin fibres such as the hair, comprising, in water, at least one oxidation dye precursor and optionally one or more couplers, characterized in that it also comprises a nonionic amphiphilic polymer containing at least one fatty chain and at least one hydrophilic unit, and, therefore the invention also relates to the processes and dyeing devices using the oxidation dye composition.

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 oxidation base, at least one substituted meta-phenylenediamine as first coupler, at least one second coupler chosen from meta-aminophenols and meta-diphenols 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 ready-to-use composition for the oxidation dyeing of keratin fibers, and in particular human keratin fibers such as the hair, comprising, in a medium which is suitable for dyeing, at least one oxidation base, at least one substituted meta-phenylenediamine as first coupler, at least one second coupler chosen from meta-aminophenols and meta-diphenols 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 substrates, which develops colour on oxidation of the general formula 1 1

Abstract: The present invention relates, firstly, to a cosmetic and/or dermatological composition intended for treating keratin fibers, in particular human keratin fibers and more particularly human hair, 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 substantive polymer chosen from the group consisting of: (i) cationic cellulose derivatives; (ii) dimethyldiallylammonium halide homopolymers and copolymers of dimethyldiallylammonium halide and of (meth)acrylic acid; (iii) methacryloyloxyethyltrimethylammonium halide homopolymers and copolymers; (iv) polyquaternary ammonium polymers; (v) vinylpyrrolidone polymers containing cationic units; (vi) mixtures thereof. The present invention also relates 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: (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 basic amino acid; as well as to processes for treating keratin fibers, in particular processes for dyeing, permanently reshaping or bleaching the hair, using this composition.