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: A hair dye composition including a first part containing an alkaline agent and a second part containing an oxidizing agent, which are mixed together immediately before use, wherein at least one of the first part and the second part contains a diazacycloheptane represented by the following general formula (1) or a salt thereof, and the pH of the mixture is 7.5 to 12; wherein Z represents a hydroxy group, a primary amino group, or a C1 to C4 acyloxy group; R1 and R2 represent H or a C1 to C4 alkyl group which may be branched; and R3 represents H, a C1 to C6 alkyl or C1 to C6 alkoxy group which may be branched, or an aralkyl or aryl group, having a total of 12 or less carbon atoms, which may have been substituted by one or more C1 to C4 alkyl or alkoxy groups.

Abstract: Provided are a one-part hair dye composition containing (A) a combination of 5,6-dihydroxyindole and 5,6-dihydroxyindole-2-carboxylic acid, (B) either one of (b1) ascorbic acid or salt thereof or (b2) sulfurous acid or salt thereof, and (C) an alkali agent and having a pH of from 8 to 11; and a method of selecting the kind of Component (B), thereby controlling a hair color upon dyeing the hair.

Abstract: The object of the present application is a dye carrier composition containing oxidative and/or non-oxidative dyes as well as (a) 6.1 to 25 weight percent of at least one fatty alcohol with 14 to 20 carbon atoms, (b) 1 to 20 weight percent of at least one fatty acid alkanolamide and (c) 1 to 15 weight percent of at least one fatty alcohol alkoxylate and/or fatty acid alkoxylate, the weight ratio of fatty alcohol (a) to fatty acid alkanolamide (b) being equal to 4:1 to 1:3 and at the same time the weight ratio of fatty alcohol (a) to alkoxylate (c) being equal to 5:1 to 1:2. Another object is the use of the afore-said combination of components (a) to (c) to produce a nacreous luster effect in dye carrier compositions and colorants for keratin fibers.

Abstract: A process for coloring and permanently shaping keratin fibers especially human hair comprising applying to the human hair: (a) an aqueous coloring 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.

Abstract: Provided is a ready-to-use composition for the oxidation dyeing of keratin fibers, and for example of human keratin fibers such as the hair, comprising: A) at least one fatty substance present in an amount of greater than or equal to 25% by weight relative to the total weight of the ready-to-use composition, at least one of the at least one fatty substance being chosen from fatty amides and fatty acid esters, B) at least one dye precursor, C) at least one oxidizing agent and optionally D) at least one alkaline agent.

Abstract: Provided herein is a process for dyeing keratin materials, comprising: applying to said keratin materials a dyeing composition, comprising, a direct emulsion (A) comprising at least one fatty substance other than fatty acids present in an amount greater than 25% by weight; at least one surfactant; at least one alkaline agent; at least one colored or coloring entity chosen from direct dyes and oxidation dyes; and water in an amount greater than 5% by weight relative to the total weight of the direct emulsion (A); and a composition (B) comprising at least one oxidizing agent.

Abstract: Provided is a ready-to-use composition for the oxidation dyeing of keratin fibers, and for example of human keratin fibers such as the hair, comprising, A) at least one fatty substance other than fatty acids present in the ready-to-use composition in an amount of greater than or equal to 25% by weight relative to the total weight of the ready-to-use composition, B) at least one polymeric thickener, C) at least one dye precursor, D) at least one oxidizing agent and E) at least one alkaline agent wherein at least one of the at least one alkaline agent is an organic amine. Also provided is a method of dyeing keratin fibers, comprising applying the ready-to-use composition to the keratin fibers for a sufficient time to develop the desired coloration.

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; at least one cationic polymer; 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 subject 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: The disclosure relates to a method for dyeing keratinous fibers by applying to said fibers i) at least one 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, iv) at least one (bi)carbonate and v) at least one surface-active agent chosen from anionic and nonionic surface-active agents. The disclosure also relates to a composition comprising i) at least one 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, iv) at least one (bi)carbonate and v) at least one surface-active agent chosen from anionic and nonionic surface-active agents.

Abstract: Provided is a composition for the treatment of keratin fibers, for example human keratin fibers such as the hair, comprising, in a cosmetically acceptable medium, at least one cationic polymer; at least one fatty amide; at least one anti-oxygen agent; and at least one oxidizing agent; wherein the pH of the composition ranges from 1.5 to 4.5. Also provided is a composition for the treatment of keratin fibers, comprising, in a cosmetically acceptable medium, at least one cationic polymer; at least one fatty amide; at least one anti-oxygen agent; and at least one oxidizing agent; wherein the pH of the composition is alkaline. Also provided is a method for treating keratin fibers, comprising applying, to the keratin fibers, at least one oxidizing composition described herein.

Abstract: The present disclosure relates to a method of coloring or lightening of human keratin fibers in the presence of an oxidizing agent, comprising the application of an anhydrous cosmetic composition comprising at least one fat, and at least one surfactant, an oxidizing composition, a composition comprising at least one inorganic base. It also relates to a kit with several compartments, in which a first compartment comprises the aforementioned anhydrous cosmetic composition, a second compartment comprises an oxidizing composition and a third compartment comprises a composition comprising at least one inorganic base and optionally at least one dye.

Abstract: Provided is an oxidative hair dye composition containing Components (A) to (D): (A) an iso-fatty acid or an anteiso-fatty acid having from 19 to 30 carbon atoms, or a salt thereof; (B) a polymer or a copolymer of a diallyl quaternary ammonium salt; (C) an oxidation dye; and (D) an alkali agent.

Abstract: By combining a hydrogen peroxide liberating complex with hair coloring dyes, a highly effective hair coloring composition is obtained which comprises a stable dry powder composition which can be stored in a single container. When use is desired, the stable dry powder composition of the present invention is mixed with water, activating the liberation of hydrogen peroxide and allowing the desired hair coloring effect to be achieved. In addition to providing a single stable dry powder formulation, the composition of the present invention is capable of achieving a wide array of shades and coloring effects.

Abstract: The present disclosure relates to a composition for simultaneously bleaching and dyeing keratin fibers, comprising at least one direct dye chosen from anionic dyes, nonionic dyes, and addition salts thereof, with the exception of 7-(6?-methylphenylazo)-1-acetamido-3,6-disulfo-8-hydroxynaphthalene, ortho-nitroanilines substituted meta to the amino group, quinoline and quinoline derivatives, and addition salts thereof, at least one inert organic liquid, at least one peroxygenated salt and at least one alkaline agent. The disclosure also relates to a process for simultaneously bleaching and dyeing keratin fibers using this composition.

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: Provided is a hair dyeing composition, containing a first part containing (a) a nitrogen-containing compound expressed by the general formula (1) or a salt thereof and a second part containing a component (b) of an oxidizing agent, wherein a pH upon use is 7.5 to 12, wherein R1 and R3 to R5 represent H, a hydroxy group, and an alkyl group with C12 or less optionally having a substituent, R2 represents a hydroxy group, —R or —OR, in which R means the same as R3 to R5, and two or more of R1 to R5 may be taken together to form a 3 to 8 membered-ring optionally having a substituent.

Abstract: A hair cosmetic formulation, comprises (A) a fragrance ingredient comprising cis-3-hexenol; and (B) monoethanolamine.

Abstract: Quaternized cellulose ethers suitable for personal care products are described.

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 inventions relate to hygiene and cosmetology, in particular to skin care. The inventive method for washing the skin by applying washing or cleaning agents and water is characterized in that it uses water with pH level ranging from 3.0 to 6.0, wherein the water flow rate ranges from 0.1 to 5 ml per 1 cm3 of the skin surface. The inventive composition comprises water, mineral salts and oxygen dissolved in said water, and also one or several types of essential proteinogenic amino acids with isoelectric point ranging from 3.0 to 6.0 pH, and its hardness is equal to or less than 0.5 mg-equivalent unit/dm3. The inventive method and composition make it possible to correct complex unfavourable changes of the skin surface layers by providing it with the required pH values during and after the washing and also by maintaining the normal chemical and bacteriological condition of the face skin.

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 disclosure relates to compositions and methods of using the compositions to color hair. The composition contains at least one polyamine, at least one acid, at least one water-insoluble ingredient, at least one hair colorant, solvent and optionally at least one auxiliary ingredient. The methods for coloring involve contacting hair with the composition of the disclosure.

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: An oxidative hair dye system comprises a hair dye, an organometallic compound and an oxidising agent. The organometallic compound is preferably an organotitanate compound, particularly a tetraalkyl titanate or a titanate chelate. Such compounds are also useful for enhancing the substantivity of topical compositions applied to the body, which comprise one or more cosmetic and/or therapeutic benefit agents, a bonding agent having hydrolysable or exchangeable ligands, and a carrier.

Abstract: The present invention relates to an aqueous composition for bleaching keratin fibers, and in particular human keratin fibers such as the hair, having a viscosity of less than 2×103 poises and comprising, in a cosmetically acceptable medium, hydrogen peroxide and at least 20% by volume of suitably selected inert particles, to a bleaching process using this composition, and also to the use of this composition for bleaching keratin fibers. The composition in accordance with the invention makes it possible rapidly to obtain substantial lightening of keratin fibers, while at the same time limiting the degradation of the keratin fibers and the skin irritation.

Abstract: By combining a hydrogen peroxide liberating complex with hair coloring dyes, a highly effective hair coloring composition is obtained which comprises a stable dry powder composition which can be stored in a single container. When use is desired, the stable dry powder composition of the present invention is mixed with water, activating the liberation of hydrogen peroxide and allowing the desired hair coloring effect to be achieved. In addition to providing a single stable dry powder formulation, the composition of the present invention is capable of achieving a wide array of shades and coloring effects.

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: Compositions for dyeing keratin fibers comprise (a) at least one keratin dyeing compound selected from aromatic systems which comprise at least one boronic acid or boronic ester moiety and which are capable of forming upon oxidation a nucleophile or an electrophile, (b) at least one additional keratin dyeing compound selected from the group consisting of auxiliary developers and auxiliary couplers, and (c) a cosmetically suitable medium. Methods for oxidatively dyeing keratin fibers comprise the steps of applying such compositions in the presence of an oxidizing agent and rinsing the hair. A hair coloring product in kit form comprises a first separately packaged container comprising a composition as described above and a second separately packaged container comprising an oxidizing agent.

Abstract: A subject-matter of the present invention is the use, in the coloring of keratinous fibers, of a specific anionic hydrotropic agent of formula: in which X represents CH or N, n represents an integer ranging from 0 to 12, R1 represents COOM or SO3M, R2 represents a hydroxyl or a C1-C4 alkyl, R3 represents hydrogen or a C1-C4 alkyl, R2 and R3 can together form a ring and M represents hydrogen or one or more inorganic cations providing the electrical neutrality of the compound of formula (I). The invention likewise relates to a dyeing composition comprising at least one dye and such an anionic hydrotrope and to coloring processes employing this dyeing composition.

Abstract: Disclosed are dyes of Formula (I) wherein D is the radical of anthraquinone, acridine, azo, azomethine, hydrazomethine, benzodifuranone, coumarine, diketopyrrolopyrrol, dioxaxine, diphenylmethane, formazane, indigoid, indophenol, naphtalimide, naphthaquinone, nitroaryl, merocyanine, methine, oxazine, perinone, perylene, pyrenequinone, phtalocyanine, phenazine, quinoneimine, quinacridone, quinophtalone, stilbene, styryl, triphenylmethane, xanthene, thiazine dye and thioxanthene dye; Q is C1-C30alkylene, —C2-C12alkenylene, C5-C10arylene-, C5-C10cycloalkylene- or —C1-C10alkylene(C5-C10arylene)- which may be interrupted and/or terminated at one or both ends by one or more than one —O—, —S—, —N?, —N(R1)—, SO2, —(CH2CH2-O) 1-5-, —(CH2CH2CH2—O) 1-5-, —C(O)—, —C(O)—C1-C12alkenylene, —C(O)O—, —OCO—, A N+R1R2, —CON(R1)—, —C(NR1R2)2—, —(R1)NC(O)—, —CSR1— or an optionally substituted, saturated or unsaturated, fused or non-fused aromatic or nonaromatic (hetero)cyclic) bivalent radical optionally comprising at least one h

Abstract: The dust-free coated dye-containing pellet is a granulated carrier material that is encapsulated with a dye-containing coating material. The dye-containing coating material contains a mixture of a water-soluble or water-dispersible film-former with at least one direct dye and/or at least one oxidation dye precursor. Preferred carrier materials include dextrose, oligosaccharides and cellulose compounds. The dust-free coated dye-containing pellet is preferably made by granulating the carrier material together with optional antioxidants and auxiliary agents, heating the resulting granulate at no more than 34° C., subsequently coating the granulate by spraying it with a solution or dispersion of the coating material and optionally drying as needed.

Abstract: Disclosed herein is a process involving the use of at least one unsaturated fatty substance of formula (I) as defined herein as an agent for protecting color with respect to the washing of artificially dyed keratin fibers such as artificially dyed hair. Also disclosed herein is a process for protecting the color of artificially dyed keratin fibers with respect to washing, comprising applying to the fibers, before or after dyeing, at least one composition comprising, in a cosmetically acceptable medium, at least one unsaturated fatty substance of formula (I). Further disclosed herein is a process for dyeing keratin fibers, comprising applying to the keratin fibers a direct or oxidation dye composition (A) for a time that is sufficient to develop the color, and following or preceding this application, applying a composition (B) comprising, in a cosmetically acceptable medium, at least one unsaturated fatty substance of formula (I).

Abstract: The invention relates to an improved method for applying hair colorant which will result in less pollution of the environment and save the user money. A hair colorant packaging system for home use, capable of separately housing two hair colorant solutions in smaller containers which the user can prepare prior to use on the hair—without preparing too much, thus wasting the product. Because of the smaller packages, the user is capable of preparing just the right amount needed.

Abstract: An oxidation hair dye composition that provides an improved dyeing property. The oxidation hair dye composition comprises an oxidation dye, an alkaline chemical, and an oxidizing agent. The oxidation hair dye composition further comprises at least one selected from the group consisting of microbial hyaluronic acids and salts thereof.

Abstract: Disclosed herein is the use, in the coloring of keratinous fibers, for example human keratinous fibers, such as the hair, of a composition comprising at least one compound chosen from the compounds of formula (I) comprising a cyclic group G including a ring H capable of opening, the dyes corresponding to the compounds of formula (I) wherein the ring H is open and the addition salts thereof: and a method for treating keratinous fibers employing this composition.

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: A hair dye composition containing an azo dye (1) or a salt thereof, (wherein R1 to R4 represents H, aliphatic hydrocarbon group, aryl group, halogen atom, acyl group, cyano group, acylamino group, or the like, wherein R1 and R2, and/or R3 and R4 may be coupled to form a 5- or 6-membered ring; X represents C or N, with the proviso that when X represents C, n stands for 1, and when X represents N, n stands for 0; A1, A2, A3 and A4 each represents N or represents C substituted by Y or having H, with the proviso that at least one of A1, A2, A3 and A4 is a nitrogen atom; and Y represents a substituent with the proviso that m stands for an integer from 0 to 3).

Abstract: The present disclosure relates to a dye composition comprising at least one dye, at least one nonionic surfactant, at least one anionic surfactant, at least one fatty alcohol and at least one non-ethoxylated fatty acid ester; the weight ratio of the total amount of fatty alcohols to the total amount of nonionic and anionic surfactants being greater than 0.5 and the water content comprising at least 55% by weight. The disclosure similarly relates to a process for dyeing keratin fibers, for example human keratin fibers, using such a composition, and also to a multi-compartment device comprising the dye composition in the first compartment, and an oxidizing composition in the second compartment.

Abstract: Disclosed herein is a composition for the non-oxidizing aqueous direct dyeing of keratin materials, for example, human keratin fibers, such as the hair, comprising, in a cosmetically acceptable medium: (a) at least one water-soluble direct dye, and (b) at least one water-insoluble non-coloring oxygenated organic compound, present in an amount of at least 30% by weight relative to the total weight of the composition. Also disclosed herein is a process for direct dyeing keratin fibers comprising applying said composition to the fibers.

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 agent for coloring keratin fibers is free of chemical oxidants, is in the form of an aqueous or aqueous-alcoholic dye-containing preparation, and contains a combination of oxidation dyes and at least three direct dyes. The agent is characterized by a quantitative ratio of oxidation dyes to direct dyes equal to 5:1 to 0.5:1. A method of dyeing hair is described in which the agent is applied to hair and allowed to act on the hair for an acting time of 5 to 60 minutes without addition of chemical oxidants, so that air oxidation provides a uniform and stable coloration of the hair.

Abstract: Disclosed herein are methods for coloring keratinous fibers comprising applying to the fibers a dyeing composition comprising at least one aminopyrazolopyridine base, said coloring method being performed without the addition of chemical oxidizing agents.

Abstract: The subject of the present invention is the use, for dyeing in particular human keratin materials, of a specific direct azomethine dye, by dry thermal transfer. Its subject is furthermore a method for dyeing keratin materials, in which at least one direct azomethine 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: The subject of the invention is a composition for the oxidation dyeing of human keratinous fibers and in particular hair comprising, in a cosmetically acceptable medium based on water and at a basic pH, at least one oxidation dye and an alkalinizing agent consisting of sodium metasilicate and aqueous ammonia, and the dyeing method using this composition.