Abstract: The present specification provides for an agent for coloring keratinic fibers. The agent includes, a cosmetic carrier, a compound of formula (I), R1 and R2 independently of one another denote hydrogen, a C1-C6 alkyl group, a C2-C6 alkenyl group, a hydroxyl group, a halogen, a C1-C6 alkoxy group, an amino group, a nitro group, an acetyl amino group, or a sulfonamide group; or when in ortho-position to one another, form a 5- or 6-membered, saturated or unsaturated ring, which optionally include further heteroatoms.

Abstract: The invention relates to agents for coloring keratinic fibers, in particular human hair, including in a cosmetic carrier at least one compound of the formula (I). The structures the of the general formula (I) have a heterocycle A which bears a quaternary nitrogen atom and thus a positive charge. The invention furthermore relates to the use of these novel azo dyes in agents for coloring hair and to the dyes themselves.

Abstract: The present specification provides for an agent for coloring keratinic fibers. The agent includes, a cosmetic carrier, a compound of formula (I), R1 and R2 independently of one another denote hydrogen, a C1-C6 alkyl group, a C2-C6 alkenyl group, a hydroxyl group, a halogen, a C1-C6 alkoxy group, an amino group, a nitro group, an acetyl amino group, or a sulfonamide group; or when in ortho-position to one another, form a 5- or 6-membered, saturated or unsaturated ring, which optionally include further heteroatoms.

Abstract: An agent for the oxidative dyeing of keratinous fibres is provided. The agent contains, as a developer-type oxidation dye precursor, a compound of Formula (I) that carries at least one cationic charge in Y.

Abstract: An agent for the oxidative dyeing of keratinous fibers is provided. The agent contains, as a developer-type oxidation dye precursor, a compound of Formula (I) that carries at least one cationic charge in Y.

Abstract: The invention relates to agents for coloring keratinic fibers, in particular human hair, including in a cosmetic carrier at least one compound of the formula (I). The structures the of the general formula (I) have a heterocycle A which bears a quaternary nitrogen atom and thus a positive charge. The invention furthermore relates to the use of these novel azo dyes in agents for coloring hair and to the dyes themselves.

Abstract: The invention provides an agent for lightening keratinic fibers, the agent containing in a cosmetic carrier (i) at least one acyl pyridinium derivative of formula (I), (ii) at least one alkalizing agent selected from triethanolamine, 2-amino-2-methylpropan-1-ol, 2-amino-2-methylpropane-1,3-diol, lysine, ornithine and/or an alkalizing agent mixture comprising at least one basic amino acid and at least one alkanolamine, and (iii) at least hydrogen peroxide as an oxidizing agent.

Abstract: The invention provides an agent for lightening keratinic fibers, the agent containing in a cosmetic carrier (i) at least one acyl pyridinium derivative of formula (I), (ii) at least one cationic polysaccharide, and (iii) at least hydrogen peroxide as an oxidizing agent.

Abstract: The invention provides an agent for lightening keratinic fibers, the agent containing in a cosmetic carrier (i) at least one acyl pyridinium derivative of formula (I), (ii) at least one cationic polysaccharide, and (iii) at least hydrogen peroxide as an oxidizing agent.

Abstract: The invention provides an agent for lightening keratinic fibers, the agent containing in a cosmetic carrier (i) at least one acyl pyridinium derivative of formula (I), (ii) at least one alkalizing agent selected from triethanolamine, 2-amino-2-methylpropan-1-ol, 2-amino-2-methylpropane-1,3-diol, lysine, ornithine and/or an alkalizing agent mixture comprising at least one basic amino acid and at least one alkanolamine, and (iii) at least hydrogen peroxide as an oxidizing agent.

Abstract: Dicationic azo dyes of the formula (I), which are suitable for coloring keratin fibers, in particular human hair, and are in part themselves still not described in the prior art are provided. In colorations, particularly brilliant and luminous red shades are obtained. Agents for dyeing and optionally simultaneously lightening keratin fibers and methods for dyeing and optionally simultaneously lightening keratinic fibers also are provided.

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: Agent for lightening keratin fibers, particularly human hair. The agent for lightening keratin fibers contains at least one cationic phthalimide of formula (I) in addition to an oxidant in a cosmetic carrier.

Abstract: Agent for lightening keratinic fibers, particularly human hair, wherein the agent contains, in a cosmetic carrier, at least one oxidizing agent chosen from hydrogen peroxide and/or a solid addition product thereof with organic or inorganic compounds, and at least one sulfonimine of formula (I)—

Abstract: Agent for lightening keratin fibers, particularly human hair. The agent for lightening keratin fibers contains at least one cationic phthalimide of formula (I) in addition to an oxidant in a cosmetic carrier.

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: 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: 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: Use of a composition comprising hydrogen peroxide in a cosmetic vehicle allows gentle discoloring of permanently colored, keratinous fibers which have been colored with a specific coloring composition. The coloring composition used for coloring the fibers comprises, in a cosmetic vehicle, a combination of at least one CH-acidic compound with at least one reactive carbonyl compound. The discoloring composition contains preferably between 0% and 15% by weight of hydrogen peroxide and has the effect, in particular in a working time of 5 to 20 minutes even without the use of organic peroxo compounds and in the absence of inorganic persalts, of effective color removal with simultaneous gentle treatment of the fibers.

Abstract: Agent for lightening keratinic fibers, particularly human hair, wherein the agent contains, in a cosmetic carrier, at least one oxidizing agent chosen from hydrogen peroxide and/or a solid addition product thereof with organic or inorganic compounds, and at least one sulfonimine of formula (I)—