Abstract: The present invention relates to an agent for oxidatively dyeing keratin fibers, and in particular human hair, containing, in a cosmetic carrier, (a) at least one oxidation dye precursor of the developer type, and (b) isatin, and (c) at least one alkalizing agent from the group consisting of ammonia, monoethanolamine, 2-amino-2-methylpropanol, arginine, lysine, ornithine, and histidine.

Abstract: An agent for oxidatively dyeing keratinous fibers, in particular human hair, using at least one oxidation dye precursor of the developer type in combination with isatin and at least one determined complexing agent to provide a resorcinol-free hair dye.

Abstract: An agent for oxidatively dyeing keratinous fibers, and in particular human hair, using at least one developer-type oxidation dye precursor and at least one coupler-type oxidation dye precursor in combination with isatin to provide a broad spectrum of rich colorations having high fastness properties, without the use of couplers of the resorcinol type and without impairing product safety.

Abstract: An agent for oxidatively dyeing keratinous fibers, in particular human hair, containing, in a cosmetic carrier, at least one oxidation dye precursor or the developer type, isatin, and at least one oxidizing agent and related systems and methods.

Abstract: An agent for oxidatively dyeing keratin fibers, in particular human hair, containing, in a cosmetic carrier, isatin and at least one polymer from the group consisting of xanthan gum, algin, carrageenan, cetyl hydroxyethyl cellulose, carboxymethyl cellulose, tragacanth, gum karaya, gum ghatti, agar, chitin, chitosan, gum arabic, gellan gum, guar gum, tamarind seed flour, carob gum, and the physiologically acceptable salts thereof.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursors 2-(1,3-benzodioxol-5-ylamino)ethanol and 1-phenyl-3-methylpyrazol-5-one in combination with at least one oxidation base.

Abstract: The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and (a2) at least one colorant compound selected from the group of pigments and/or direct dyes, application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one film-forming polymer, and Application of an agent (c) to the keratinous material, wherein the agent (c) comprises: (c1) at least one amino-functional polyorganosiloxane and (c2) at least one polyvalent metal salt, wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 2-methoxymethyl-para-phenylenediamine.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 2-(2,5-diaminophenyl)ethanol, wherein the pH of the agent is higher than 8.0.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole.

Abstract: A pigment suspension is provided. In one example, the pigment suspension includes a) at least one colorant compound selected from the group of pigments, b) at least one C1-C10 alcohol, c) at least one diol, d) at least one thickening agent, and e) water. A method for dyeing keratinous material and a multi-component packaging unit (kit-of-parts) for dyeing keratinous material including a pigment suspension are also provided.

Abstract: A method and a kit-of-parts are provided for dyeing keratinous material. The method includes applying a first agent to the keratinous material and applying an second agent to the keratinous material. The first agent includes at least one organic silicon compound. The second agent comprises at least one colorant compound and at least one film-forming polymer. The colorant compound includes at least one effect pigment including a substrate platelet including synthetic mica. The colorant compound further includes a coating including at least a first metal oxide (hydrate) layer.

Abstract: The subject of the present disclosure is a method for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and (a2) at least one hydroxycarboxylic acid ester, (a3) at least one diol and Application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one sealing reagent, wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes.

Abstract: The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (v) to the keratinous material, the agent (v) comprising: (v1) at least one quaternary ammonium compound, Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one sealing reagent, wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 2-methoxymethyl-para-phenylenediamine.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursors 2-(1,3-benzodioxol-5-ylamino)ethanol and 1-phenyl-3-methylpyrazol-5-one in combination with at least one oxidation base.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole.

Abstract: The subject of the present application is an agent for the oxidative dyeing of keratinous fibers, in particular human hair, which contains the coupling oxidation dye precursor 2-(1,3-benzodioxol-5-ylamino)ethanol in combination with the oxidation base 2-(2,5-diaminophenyl)ethanol, wherein the pH of the agent is higher than 8.0.

Abstract: The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair, comprising the following steps: Application of an agent (a) to the keratinous material, wherein the agent (a) comprises: (a1) at least one organic silicon compound selected from the group of silanes having one, two or three silicon atoms, and (a2) hyaluronic acid and/or its salt, and application of an agent (b) to the keratinous material, wherein the agent (b) comprises: (b1) at least one sealing reagent, wherein at least one of the agents (a) and (b) further comprises at least one colorant compound selected from the group of pigments and/or direct dyes. Also disclosed are multi-component packaging unit (kit-of-parts) for dyeing keratinous material.

Abstract: The disclosure describes a pigment suspension comprising a) at least one colorant compound selected from the group of pigments and b) an ester of glycerol with an aliphatic C2-C6 carboxylic acid. The disclosure also discloses a cosmetic agent obtainable by combining the pigment suspension with one or more organic C1-C6 alkoxysilanes and/or condensation products thereof.