Abstract: A method and data processing device is described herein for computer-aided determination of a hair coloring agent for coloring of hair in a desired hair color. A device for production of an individually determined hair coloring agent is also described herein.

Abstract: In various exemplary embodiments, a method for computer-supported determination of properties of hair colors is prepared. The method can include: preparing hair color data, wherein the hair color data has values for a multitude of color pre-condition parameters and for at least one coloring result parameter for a multitude of coloring processes, wherein the multitude of coloring processes includes a first concentration of a first dye precursor and a second concentration of a second dye precursor for each coloring process of the multitude of coloring pre-condition parameters, wherein the multitude of coloring processes of the at least one coloring result parameters has a measured specification with a property of hair colors and determining a relationship between the multitude of coloring pre-condition parameters and the at least one coloring result parameter by employing predictive analytics based on the hair color data.

Abstract: Cosmetic hair post-treatment agent for improving washing fastness of coloring processes produced on hair and for color fixing, the post-treatment agent containing, in a cosmetic carrier, at least one acetylpyridinium derivative of formula (I) wherein R1 is a C1 to C6 alkyl group, a C2 to C6 alkenyl group, a C2 to C6 hydroxyalkyl group, a C1 to C6 alkoxy-C2 to C6 alkyl group, a carboxy-C2 to C6 alkyl group, an aryl-C1 to C6 alkyl group, a heteroaryl-C1 to C6 alkyl group, an aryl group, or a heteroaryl group, and X? is a physiologically acceptable anion.

Abstract: Method for lightening keratinous fibers, wherein a cosmetic carrier comprises (i) at least one oxidation agent, (ii) at least one acylpyridinium derivative of formula (I) and (iii) at least one amino acid comprising hydroxyl groups and/or the physiologically compatible salts thereof and/or the alkyl esters thereof.

Abstract: Agent for lightening keratinous fibers comprising in a cosmetic carrier (i) at least one oxidation agent, (ii) at least one acylpyridinium derivative of Formula (I) and (iii) at least one ammonium compound comprising hydroxyl groups of Formula (II).

Abstract: Cosmetic hair treatment agent comprising, in a cosmetically acceptable carrier, at least one surface-active agent chosen from cationic and/or zwitterionic surfactants, and at least one acetylpyridinium derivative of formula (I) for improving the general condition of the hair, for reducing hair damage in the interior of the hair, and for increasing the elasticity of hair.

Abstract: Cosmetic hair treatment agent free from hydrogen peroxide and/or the addition products thereof to organic and inorganic compounds and having, in a cosmetic carrier, at least one surface-active agent chosen from anionic, amphoteric and/or zwitterionic surfactants, and at least one acetylpyridinium derivative of formula (I) for improving the general condition of the fibers, for reducing hair damage in the interior of the hair and for increasing the elasticity of the hair.

Abstract: Method for lightening keratinous fibers, wherein a cosmetic carrier comprises (i) at least one oxidation agent, (ii) at least one acylpyridinium derivative of formula (I) and (iii) at least one amino acid comprising hydroxyl groups and/or the physiologically compatible salts thereof and/or the alkyl esters thereof.

Abstract: Agent for lightening keratinous fibers comprising in a cosmetic carrier (i) at least one oxidation agent, (ii) at least one acylpyridinium derivative of Formula (I) and (iii) at least one ammonium compound comprising hydroxyl groups of Formula (II).

Abstract: Cosmetic hair treatment agent free from hydrogen peroxide and/or the addition products thereof to organic and inorganic compounds and having, in a cosmetic carrier, at least one surface-active agent chosen from anionic, amphoteric and/or zwitterionic surfactants, and at least one acetylpyridinium derivative of formula (I) for improving the general condition of the fibers, for reducing hair damage in the interior of the hair and for increasing the elasticity of the hair.

Abstract: Cosmetic hair post-treatment agent for improving washing fastness of coloring processes produced on hair and for color fixing, the post-treatment agent containing, in a cosmetic carrier, at least one acetylpyridinium derivative of formula (I) wherein R1 is a C1 to C6 alkyl group, a C2 to C6 alkenyl group, a C2 to C6 hydroxyalkyl group, a C1 to C6 alkoxy-C2 to C6 alkyl group, a carboxy-C2 to C6 alkyl group, an aryl-C1 to C6 alkyl group, a heteroaryl-C1 to C6 alkyl group, an aryl group, or a heteroaryl group, and X? is a physiologically acceptable anion.

Abstract: Cosmetic hair treatment agent comprising, in a cosmetically acceptable carrier, at least one surface-active agent chosen from cationic and/or zwitterionic surfactants, and at least one acetylpyridinium derivative of formula (I) for improving the general condition of the hair, for reducing hair damage in the interior of the hair, and for increasing the elasticity of hair.

Abstract: Agent for bleaching keratinic fibers containing hydrogen peroxide, at least one cationic 3,4-dihydroisoquinoline derivate of general structure (I)— and at least one alkanol amine of the following general structure (II)— where n is a natural number from 2 to 6. The invention further relates to use of the agent for bleaching hair and to a corresponding method.

Abstract: Agents for dyeing and/or lightening keratin fibers, in particular human hair, containing, relative to the weight thereof, 0.001 to 15 wt. % of at least one aldehyde of the formula (I): wherein X represents —CH(R2)—SO2—Y—R1, —CR3R4R5, or wherein Y represents —CH(CHO)— or —CH2— or a chemical bond, and wherein each of R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 independently represents —H or —CN or —F or —Cl or —Br or —I or —CHO or —NH2 or —NO2 or —CF3 or —CCl3 or —CF2CF3 or —CCl2CCl3 or an optionally substituted (C1-C6) alkyl group or a hydroxyalkyl group or a polyhydroxyalkyl group or an optionally substituted (C1-C6) alkylene group, and wherein the agent contains no oxidation dye precursors of developer and coupler type.

Abstract: Agents for coloring keratinic fibers are provided which contain specific m-phenylenediamine derivatives such as N-2-(morpholine-4-yl)ethyl-m-phenylenediamine, N-3-(morpholine-4-yl)propyl-m-phenylenediamine, and N-3-(imidazole-1-yl)-propyl-m-phenylenediamine.

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: Keratinic fibers, especially human hair are dyed by an agent containing a coupling component which is an m-phenylenediamine derivative of the formula wherein R1 is a C1-4 alkyl group or a C1-4 monohydroxy alkyl group, R2 is a hydrogen atom, a methyl or an ethyl group and each of R3 and R4 is independently a branched or linear C2-6 hydroxyalkyl group, with the proviso that the R1O group is in the ortho or meta position to both amino groups; and a cosmetically acceptable carrier. These agents afford desired color nuances in a sufficient intensity and fastness, exhibit good fiber affinity and are safe from a toxicological and dermatological point of view.

Abstract: Agents for coloring keratinic fibers are provided which contain specific m-phenylenediamine derivatives such as N-2-(morpholine-4-yl)ethyl-m-phenylenediamine, N-3-(morpholine-4-yl)propyl-m-phenylenediamine, and N-3-(imidazole-1-yl)-propyl-m-phenylenediamine.

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: p-Phenylenediamines and derivatives thereof connected by polyoxaalkyl bridges to form dimers are highly suitable developer substances in oxidation hair colors.