Abstract: The present disclosure relates to an agent for dyeing and/or bleaching keratin fibers formed by: a first composition (A) comprising at least one basifying agent, and a second composition (B) comprising at least one oxidizing agent, wherein at least one of the two compositions (A) and (B) comprises at least one fatty substance not containing any carboxylic acid functional groups, the total amount of fatty substances in the mixture of compositions (A) and (B) representing at least 20% by weight relative to the total weight of the mixture of these compositions, and at least one of the compositions (A) and (B) comprises at least one sequestrant chosen from those of formula (I) and acids thereof: The present disclosure also relates to a process for dyeing and/or bleaching keratin fibers using the agent, and to a kit containing thereof.

Abstract: The present disclosure relates to an agent for coloring and/or bleaching keratin fibers, consisting of: a first composition (A) comprising at least one alkalizing agent, and a second composition (B) comprising at least one oxidizing agent, wherein at least one of the two compositions (A) and (B) comprises at least one fat selected from liquid hydrocarbons, such that the at least one fat is present in a mixture of compositions (A) and (B) in an amount of at least 20 wt. %, relative to the total weight of the mixture, and further wherein at least one of compositions (A) and (B) comprises at least one reductone optionally in a form chosen from acids, salts, and esters. The present disclosure also relates to a method of coloring and/or bleaching keratin fibers employing the agent, as well as a kit containing it.

Abstract: The present invention relates to a composition for treating keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a cosmetically acceptable medium, one or more alkanolamines, one or more basic amino acids and one or more additional alkaline agents chosen from aqueous ammonia; ammonium salts of acids whose pKa at 25° C. is greater than 4; alkali metal or alkaline-earth metal hydroxides, carbonates, carbamates and hydrogen carbonates. The present invention also relates to processes for bleaching and/or dyeing keratin fibres, and also to multi-compartment devices or ‘kits’ for performing these processes.

Abstract: The present invention provides a composition for treating keratin fibres, and especially human keratin fibres such as the hair, which comprises, in a cosmetically acceptable medium, one or more alkanolamines, one or more amino acids and one or more cationic polymers. The present invention likewise provides methods of bleaching and/or colouring keratin fibres, and also multiple-compartment devices or kits for the implementation of these methods.

Abstract: The present disclosure relates to a hair dyeing process comprising dyeing the hair by applying to the hair at least one dyeing composition comprising at least one dye precursor; rinsing the hair; and post-treating the hair by applying to the hair at least one aqueous composition comprising at least 30% of water and at least 20% of at least one organic silicon compound chosen from the silanes that comprise one silicon atom and the siloxanes that comprise two or three silicon atoms, wherein the least one organic silicon compound also comprises at least one basic chemical functional group and at least one hydroxyl group or hydrolysable group per molecule.

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: Powder hair coloring or bleaching composition comprising: a) at least one solid source of carbonate ions, carbamate ions, hydrogencarbonate ions, or mixtures thereof; b) at least one solid source of oxidizing agent; c) at least one solid source of ammonium ions; and d) a crosslinked carboxylic acid polymer thickener having a particle size of no more than about 10 microns in an amount which, upon admixture of the powder composition with water to provide a concentration of from about 1% to about 3%, provides the dispersed composition a viscosity of from about 10000 mPas to about 20000 mPas when measured at 0.5 rpm using Brookfield viscometer spindle S52, and a pH of from about 8.5 to about 9.4.

Abstract: An air-oxidation haircolor composition is based: a) water; b) water soluble metal salt as a catalyst; c) etidronic acid (1-hydroxyethane-1,1-diphosphoric acid) as a chelating agent and color deposition enhancer; d) oxidation primary dye intermediates; e) an aromatic triol such as 1,2,4-Benzenetriol; f) auxiliary oxidation dye couplers; g) dye antioxidants and stabilizers; h) optionally, a water soluble surfactant; i) optionally, a water soluble anionic polymer; j) a water soluble solvent system; and k) an alkalizer.

Abstract: A natural coloring composition for coloring materials, and methods of its use. The coloring composition comprises a natural precursor aromatic ring molecule such as L-DOPA that is oxidatively oligomerized or polymerized in the presence of an activator, such as a salt or an enzyme, to form colored compounds that dye a material. The natural coloring composition can also include a buffer, colorant, stabilizer, and/or thickening agent, and can comprise one or two inactive solutions that are combined to form an active coloring composition.

Abstract: Disclosed herein is a process for the predictable coloring of keratinous fibers, for example, human keratinous fibers, such as the hair, comprising applying to the fibers a first composition comprising at least one oxidation base derived from diamino-N,N-dihydropyrazolone and at least one coupler, mixed with a second composition chosen from “fundamental” and/or “golden fundamental” and/or “golden” compositions.

Abstract: Discrete particle aggregates and/or discrete particle agglomerates for application onto keratin fibers, preferably hair, optionally combined with one or more oxidative and/or direct dyes.

Abstract: The present disclosure relates to a composition for dyeing or lightening human keratin fibers, comprising: a cosmetically acceptable medium; at least 25% by weight of at least one fatty substance; from 0.5% to 15% by weight of at least one silicate chosen from smectite, vermiculite, stevensite and chlorite clays; at least one dye chosen from oxidation dyes and direct dyes; at least one basifying agent; and at least one oxidizing agent. The disclosure also relates to a dyeing or lightening process using it. Another aspect of the disclosure is multi-compartment devices or kits for obtaining, after mixing together the compositions of the compartments, just before its application, a composition according to the disclosure.

Abstract: Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and at least one 3-substituted pyrazole keratin dyeing compound and derivatives thereof. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.

Abstract: A method for permanently modifying a color of keratinous fibres which comprises the steps of: first providing a mixture of three compositions A, B and C, wherein said composition A comprises at least a reducing agent and optionally a coloring compound, said composition B comprises at least an alkalizing compound and said composition C comprises at least an oxidizing compound; applying said mixture to keratinous fibres for a suitable period of time for modifying the color of said keratinous fibres; and removing said mixture from said keratinous fibres.

Abstract: The present disclosure provides a method of lightening and/or colouring human keratin fibres using at least one first composition comprising at least one specific aminosilicon compound and at least one oxidizing composition. It also provides a composition containing less than 10% by weight of water comprising at least one specific aminosilicon compound and at least one fatty substance. It provides, lastly, a multiple-compartment device in which at least one compartment comprises the abovementioned composition, and at least one other compartment comprises an oxidizing composition.

Abstract: The present invention relates to the use of alkanolamines for thickening oxidative coloring compositions. More particularly, the present invention relates to the use of alkanolamines for thickening ready to use oxidative coloring composition based on mixing two compositions wherein one comprises at least one oxidative dyeing precursor and the other comprises as least one oxidizing agent.

Abstract: The present invention provides a method of lightening and/or coloring human keratin fibers that employs: at least one substantially anhydrous or aqueous composition (A) comprising at least one fat free of carboxylic acid groups and at least one surfactant, at least one substantially anhydrous or aqueous composition (B) comprising at least one specific aminotrialkoxysilane or aminotrialkenyloxysilane compounds, and at least one aqueous composition (C) comprising at least one oxidizing agent. In addition, the present invention provides a three-compartment device appropriate for the implementation of this method.

Abstract: A new class of chemical entities chosen from aminoindolizines of formula (I), acid addition salts thereof, and solvates thereof: their use for dyeing keratin fibers, including human keratin fibers such as the hair; dyeing compositions comprising such chemical entities; and to kits containing compositions comprising those chemical entities.

Abstract: Compositions for the oxidation dyeing of keratin fibers, for example of human keratin fibers such as the hair, containing, in a medium suitable for dyeing: a) at least one oxidation dye, b) at least one associative polymer chosen from non-ioninc, anionic, and amphoteric polymers, c) at least one nonionic cellulose-based compound not comprising a C8-C30 fatty chain, and d) at least one cationic polymer with a charge density of greater than 1 meq/g and not comprising a C8-C30 fatty chain.

Abstract: Process to simultaneously color and permanently restructure hair, wherein (a) an oxidative hair colorant is applied to the hair based on at least one developer substance and least one coupler substance, (b) the oxidative hair colorant is left on for 5 to 60 minutes, (c) the oxidative hair colorant is rinsed out of the hair, (d) an acidic intermediate treatment agent with a pH of from 2 to 6 is applied to the hair, (e) after an action period of from 1 to 10 minutes, the intermediate treatment agent is rinsed out, if necessary, and the hair is then rolled up onto curlers, (f) a keratin-reducing permanent restructuring agent is applied to the hair, (g) after an action period of from 1 to 30 minutes, the keratin-reducing agent is rinsed out, if necessary, (h) the hair is fixed with an oxidative material, (i) after an action period of from 3 to 15 minutes, the hair is rinsed with water, if necessary and then treated with an acidic rinse.

Abstract: The present invention relates to hair coloring and hair bleaching compositions comprising a source of carbonate ions, at least one oxidizing agent and a specified polymer thickener wherein the composition is free of a source of radical scavengers. The compositions surprisingly provide improved hair colorant and bleaching compositions which deliver improved lift, lightening and color delivery whilst minimizing damage which are easy to manufacture and have long shelf life stability.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one first oxidation base chosen from 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the addition salts thereof, at least one second oxidation base chosen from para-phenylenediamines, at least one coupler chosen from meta-aminophenols and at least one oxidizing agent, the pH of the composition ranging from 5.5 to 7.5. The present disclosure makes it possible to obtain a coloration on keratin fibers with tints in red, coppery or mahogany tones that are sufficiently visible on natural or dyed hair and uniform from the roots to the ends.

Abstract: Provided is a process for dyeing keratin materials, comprising applying to the keratin materials: a) at least one anhydrous composition (A) comprising at least one fatty substance, at least one surfactant, at least one alkaline agent, and at least one colored or coloring species; and b) at least one aqueous composition (B) comprising at least one oxidizing agent; wherein: the at least one fatty substance is present in the at least one anhydrous composition (A) in an amount of greater than 20% by weight, relative to the total weight of the at least one anhydrous composition (A); and the at least one colored or coloring species comprises at least one oxidation dye and/or at least one direct dye; on the condition that when the at least one anhydrous composition (A) comprises, as the at least one colored or coloring species, only at least one direct dye, the at least one fatty substance is present in an amount ranging from 40 to 80% by weight, relative to the total weight of the at least one anhydrous composition

Abstract: An air-oxidation haircolor composition is based: a) water; b) water soluble metal salt as a catalyst; c) etidronic acid (1-hydroxyethane-1,1-diphosphoric acid) as a chelating agent and color deposition enhancer; d) oxidation primary dye intermediates; e) an aromatic triol such as 1,2,4-Benzenetriol; f) auxiliary oxidation dye couplers; g) dye antioxidants and stabilizers; h) optionally, a water soluble surfactant; i) optionally, a water soluble anionic polymer; j) a water soluble solvent system; and k) an alkalizer.

Abstract: The present disclosure relates to a composition for dyeing or lightening human keratin fibers, comprising: a cosmetically acceptable medium; at least 25% by weight of at least one fatty substance; from 0.5% to 15% by weight of at least one silicate chosen from smectite, vermiculite, stevensite and chlorite clays; at least one dye chosen from oxidation dyes and direct dyes; at least one basifying agent; and at least one oxidizing agent. The disclosure also relates to a dyeing or lightening process using it. Another aspect of the disclosure is multi-compartment devices or kits for obtaining, after mixing together the compositions of the compartments, just before its application, a composition according to the disclosure.

Abstract: It is to provide a hair dye stabilizer capable of stably storing a readily oxidizable compound in a hair dye, especially an oxidizing dye intermediate or a coupler and effective for remarkably improving the offensive odor problem. Furthermore, it is to provide a hair dye stabilizer giving improvement in damage on the hair, hardly irritating the skin, and free from adverse effects on the dyeing ability of the hair dye. As the active component constituting the hair dye stabilizer, a compound which is a mercapto-hydrocarbon compound and/or a thiol alcohol compound and does not contain a functional group reactive with a dye intermediate or a coupler is used. A readily oxidizable compound and the like in a hair dye can be stably stored by the use of an extremely small amount of the stabilizer.

Abstract: The disclosure relates to methods for dyeing keratinous fibers by treatment of said fibers with i) at least entity chosen from ortho-diphenol and derivatives thereof, ii) at least one metal salt, iii) hydrogen peroxide or at least one system which generates hydrogen peroxide and iv) at least one (bi)carbonate, said method additionally involving an intermediate wiping and/or drying and/or non rinsing stage.

Abstract: The present disclosure relates to a composition for the oxidation dyeing of keratin fibers, for example, human keratin fibers such as the hair, intended to be mixed at the time of use with an oxidizing agent, comprising: A) at least one oxidation base chosen from para-aminophenols and the addition salts thereof with an acid; B) at least one additional dye precursor different from the at least one oxidation base defined in A); and C) dipropylene glycol; wherein: the at least one oxidation base is present in an amount of greater than or equal to 1.5% by weight, relative to the total weight of the composition; and the dipropylene glycol is present in an amount of greater than or equal to 3.5% by weight, relative to the total weight of the composition.

Abstract: The present disclosure relates to a cosmetic process for wash-protecting the color of keratin fibers comprising applying a composition comprising, in a cosmetically acceptable medium, at least one zinc-based compound chosen from zinc-based mineral compounds and zinc-based non-nitrogenous organic compounds to keratin fibers previously dyed. Also disclosed is a cosmetic process for wash-protecting the color of dyed keratin fibers, comprising applying to the keratin fibers, after dyeing, at least one zinc-based compound chosen from zinc-based mineral compounds and zinc-based non-nitrogenous organic compounds. The present disclosure further relates to a process for dyeing keratin fibers comprising applying to the fibers at least one dye composition (A), optionally in the presence of an oxidizing agent, for period of time that is sufficient to develop the color, and applying a composition (B) comprising, in a cosmetically acceptable medium, at least one zinc-based compound as defined herein.

Abstract: The present disclosure relates to a cosmetic composition comprising at least one fluorescent dye and at least one aminosilicone; processes using this cosmetic composition and a kit comprising at least one composition comprising at least one fluorescent dye and at least one aminosilicone, which can be used to dye with a lightening effect human keratin materials for example, artificially dyed or pigmented hair, and dark skin.

Abstract: Disclosed herein is a composition for the oxidation dyeing of keratin fibers, for example human keratin fibers, such as the hair, comprising, in a medium suitable for dyeing, a) at least one oxidation dye; b) at least one fatty alcohol; c) at least one associative polymer; and d) at least one compound chosen from fatty acid esters and metal oxides.

Abstract: The present invention relates to compositions for the oxidative dyeing of keratin fibres, comprising a medium suitable for dyeing and a compound 2-(amino or substituted amino)-3,5-substituted phenol compounds according to the Formula (I), as defined herein.

Abstract: A composition for the oxidation dyeing of keratin fibers, for example, human keratin fibers, such as hair, comprising, in a medium suitable for dyeing, a) at least one oxidation dye, b) at least one fatty alcohol, c) at least one associative polymer, and d) at least one C14-C30 alkyl sulphate; as well as the process for using this composition and multicompartment kits comprising the composition.

Abstract: Disclosed herein is a composition for the oxidation dyeing of keratin fibers, for example of human keratin fibers, such as the hair, containing, in a medium that is suitable for dyeing, a) at least one oxidation dye, b) at least one associative polymer, and c) at least one aminosilicone, wherein the at least one aminosilicone/at least one associative polymer weight ratio is greater than or equal to 1.

Abstract: Compositions suitable for treating keratinic fibers, in particular human hair, are disclosed, which compositions comprise: (i) at least one component selected from the group consisting of salt compounds of general formula I, enamine counterparts of salt compounds of general formula I, and mixtures thereof: Where each Me represents a methyl group, R represents a substituent selected from the group consisting of an allyl group, a hydroxy-(C2-6)-alkyl group, a benzyl group, and substituted benzyl groups, and X? represents a physiologically compatible anion; and (ii) at least one aldehyde selected from the group consisting of 4-hydroxy-3-methoxybenzaldehyde, 3,5-dimethoxy-4-hydroxybenzaldehyde, 4-hydroxy-1-naphthaldehyde, 4-hydroxy-2-methoxybenzaldehyde, 3,4-dihydroxy-5-methoxybenzaldehyde, 3,4,5-trihydroxybenzaldehyde, 3,4-dibromo-4-hydroxybenzaldehyde, 4-hydroxy-3-nitrobenzaldehyde, 3-bromo-4-hydroxybenzaldehyde, 4-hydroxy-3-methylbenzaldehyde, 3,5-dimethyl-4-hydroxy-benzaldehyde, 5-bromo-4-hydroxy-3-methox

Abstract: Disclosed herein are compositions for dyeing keratin fibers, for example human keratin fibers such as the hair, comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2 -a]pyrazol-1-one or an addition salt thereof, at least one oxidation base, at least one coupler, at least one surfactant chosen from oxyalkylenated or glycerolated fatty alcohols, anionic surfactants of sulfate or sulfonate type and amphoteric surfactants of betaine type, and at least one oxidizing agent, the pH of the composition ranging from 5.5 to 7.5. The compositions disclosed herein make it possible to obtain coloration on keratin fibers with tints in red, coppery or mahogany tones that are sufficiently visible on natural or dyed hair and/or uniform from the roots to the ends.

Abstract: The present disclosure relates to a composition for dyeing keratin fibers, comprising 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one as first oxidation base, 6-chloro-2-methyl-5-aminophenyl as first coupler and a substituted meta-aminophenol of given formula as second coupler, it being understood that the at least one first oxidation base and the at least one first coupler are present in a mole ratio of less than 1.5, the at least one first oxidation base and the at least one second coupler are present in a mole ratio of greater than 1, and the molar amount of the at least one first oxidation base is greater than or equal to 2.5×10?3 mol per 100 g of composition. One aspect of the present disclosure makes it possible to obtain a strong, very chromatic, aesthetic, sparingly selective and/or fast coloration of keratin fibers in coppery shades. Further, the present disclosure makes it possible to obtain a strong coloration at a neutral pH.

Abstract: Disclosed herein is a composition for dyeing keratin fibers, comprising at least one first oxidation base chosen from 2,3-diamino-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazol-1-one and the addition salts thereof, at least one second coupler chosen from para-phenylenediamine, para-tolylenediamine, and the addition salts thereof, and at least one coupler chosen from substituted meta-aminophenols, wherein the first coupler/first oxidation base mole ratio is greater than 1, the first oxidation base/second oxidation base mole ratio ranges from 0.5 to 1.5, and the molar amount of the first oxidation base is greater than or equal to 2.5×10?3 mol per 100 g of composition. Also disclosed herein is a dyeing process comprising applying such a composition to the keratin fibers. The compositions of the present disclosure may make it possible to obtain a strong, aesthetic, sparingly selective, and/or fast coloration of keratin fibers in visible deep red shades.

Abstract: The subject of the present invention is the use, for dyeing in particular human keratin materials, of a specific direct anthraquinone dye by dry thermal transfer. Its subject is furthermore a method for dyeing keratin materials, in which at least one direct anthraquinone dye contained in a dry composition is applied to or close to the keratin materials, and a source of heat is applied, causing the thermal transfer of the direct dye(s) at the surface and/or inside the keratin materials. It relates furthermore to the dry composition and a method for preparing it.

Abstract: It is to provide a hair dye stabilizer capable of stably storing a readily oxidizable compound in a hair dye, especially an oxidizing dye intermediate or a coupler and effective for remarkably improving the offensive odor problem. Furthermore, it isto provide a hair dye stabilizer giving improvement in damage on the hair, hardly irritating the skin, and free from adverse effects on the dyeing ability of the hair dye. As the active component constituting the hair dye stabilizer, a compound which is a mercapto-hydrocarbon compound and/or a thiol alcohol compound and does not contain a functional group reactive with a dye intermediate or a coupler is used. A readily oxidizable compound and the like in a hair dye can be stably stored by the use of an extremely small amount of the stabilizer.

Abstract: An air-oxidation haircolor composition is based: a) water; b) water soluble metal salt as a catalyst; c) etidronic acid (1-hydroxyethane-1,1-diphosphoric acid) as a chelating agent and color deposition enhancer; d) oxidation primary dye intermediates; e) an aromatic triol such as 1,2,4-Benzenetriol; f) auxiliary oxidation dye couplers; g) dye antioxidants and stabilizers; h) optionally, a water soluble surfactant; i) optionally, a water soluble anionic polymer; j) a water soluble solvent system; and k) an alkalizer.

Abstract: The present invention provides a dyeing composition comprising, in a cosmetically acceptable medium, one or more oxidation dyes, aqueous ammonia, ammonium chloride and one or more additives selected from ceramides, silicas, ascorbic acid and/or its salts, fatty acids and/or salts thereof, alkanolamines and/or salts thereof, crosslinked homopolymers of acrylic acid, copolymers of dialkyldiallylammonium chloride and acrylic acid, and particular cationic polymers, or mixtures thereof. It likewise provides a method of colouring human keratin fibres, employing the said composition in the presence of a composition comprising one or more oxidizing agents. The invention further provides a multiple-compartment device appropriate to the implementation of the said method, comprising in a first compartment a dyeing composition according to the invention and in another compartment a composition comprising one or more oxidizing agents.

Abstract: The present disclosure relates to oxidation dye compositions comprising, in an aqueous medium suitable for dyeing, at least one oxidation dye, ammonia, and at least one mesomorphic phase present in an amount greater than or equal to 10% by weight, relative to the weight of the composition. The present disclosure also relates to the process for preparing the compositions, as well as ready-to-use compositions for oxidation dyeing of keratin fibers, and multi-compartment kits for oxidation dyeing of keratin fibers, wherein at least one compartment contains the dye composition. Another aspect of the present disclosure is an oxidizing composition comprising a mesomorphic phase.

Abstract: Compositions for oxidation dyeing of keratin fibers, in particular human keratin fibers such as hair, comprising, in a dyeing medium, at least one oxidation dye, at least one thickening polymer comprising at least one fatty chain and at least one fatty alcohol chosen from monoglycerolated and polyglycerolated fatty alcohols. Processes comprising such oxidation dyeing compositions.

Abstract: The present invention relates to oxidizing hair colorant compositions comprising selected oxidative hair dyes and diethylene-triamine-penta-(methylenephosphonic acid). The compositions provide improved hair color tonality, root to tip evenness and reduced wash fade over time.

Abstract: A new and improved hair dye formula which is completely oleic acid free and has a high percentage water base including sodium lauryl sulfate, sodium lauryl sulfoacetate and disodium laureth sulfosuccinate along with a low percentage peroxide content for protecting consumers during the hair dye process.

Abstract: The present disclosure relates to novel N-alkylpolyhydroxylated secondary para-phenylenediamines, to processes for preparing them, to compositions for dyeing keratin fibers, for example keratin fibers such as the hair, comprising, in a medium that is suitable for dyeing, at least one such secondary para-phenylenediamine. The present disclosure also relates to processes for dyeing keratin fibers with the compositions according to the present disclosure, and to dyeing kits containing such compositions.

Abstract: Disclose herein is a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolones and addition salts thereof, at least one coupler, and at least one heterocyclic direct dye. Also disclosed herein is a method for dyeing keratin fibers comprising applying a composition of the present disclosure to the keratin fibers. The compositions and methods of the present disclosure may make it possible to obtain fast coloration of keratin fibers that is resistant to light and/or to washing.

Abstract: The present disclosure relates to polycationic monochromophoric hydrazone compounds of following formula (I): wherein W1 is a heteroaromatic radical comprising 5 or 6 ring members, optionally condensed with an aromatic ring comprising 6 ring members, comprising a quaternized nitrogen atom and optionally another heteroatom which may or may not be identical to nitrogen; X, which may or may not be identical, is a nitrogen atom or a CR2 group; Z is a cationic group comprising at least one quaternized nitrogen atom. 1The present disclosure also relates to a composition for dyeing human keratin fibers comprising the polycationic compounds disclosed herein, and to a dyeing process using the composition of the present disclosure, and ever further to multicompartment device.

Abstract: The present invention is related to a process for colouring and permanent shaping keratin fibres especially human hair in a single process. The novel process for colouring and permanently shaping keratin fibres especially human hair according to the present invention includes the following steps: a—an aqueous oxidative colouring composition based on at least one oxidative dye precursor and optionally at least one coupling substance but not comprising any direct dye is mixed with a composition comprising at least one oxidizing agent and applied onto hair and rinsed off from hair with water after processing 5 to 45 min at a temperature of 20 to 45° C.