An agent for oxidatively dyeing of keratinic fibers includes, in a cosmetic carrier, (A) 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or one of the physiologically acceptable salts thereof as developer, (B) at least one pyrimidine derivative selected from 2,4,5,6-tetraaminopyrimidin, 4-hydroxy-2,5,6-triaminopyrimidin, 2-hydroxy-4,5,6-triaminopyrimidin and/or one of the physiologically acceptable salts thereof as developer, (C) at least one m-diaminobenzene derivative selected from 2-(2,4-diaminophenoxy)ethanol, 1-methoxy-2-amino-4-(2-hydroxyethylamino)benzene, 2,6-bis(2-hydroxy-ethylamino)-1-methylbenzene, and/or one of the physiologically acceptable salts thereof as coupler, and (D) at least one m-dihydroxybenzoyl derivative selected from resorcinol, 2-methylresorcinol and/or 4-chlororesorcinol as coupler.

An agent for oxidatively dyeing keratin fibers includes in a cosmetic carrier, (A) as developer, 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or one of the physiologically acceptable salts thereof, (B) as developer, at least one pyrimidine derivative selected from 2,4,5,6-tetraaminopyrimidine, 4-hydroxy-2,5,6-triaminopyrimidine, 2-hydroxy-4,5,6-triaminopyrimidine and/or one of the physiologically acceptable salts thereof, (C) as coupler, at least one m-diaminobenzene derivative selected from 2-(2,4 -diaminophenoxy)ethanol, 1-methoxy-2-amino-4-(2-hydroxyethylamino)benzene, 2,6-bis(2-hydroxyethylamino)-1-methylbenzene, and/or one of the physiologically acceptable salts thereof, and (D) as coupler, at least one m-aminophenol derivative selected from 3-aminophenol, 5-amino-2-methylphenol and/or one of the physiologically acceptable salts thereof.

An agent for oxidatively dyeing keratinous fibers includes in a cosmetic carrier: (A) 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or one of the physiologically acceptable salts thereof as developer; (B) at least one p-aminophenol derivative from the group comprising p-aminophenol, 4-amino-3-methylphenol, and/or the physiologically acceptable salts thereof as developer; (C) at least one m-diaminobenzene derivative from the group comprising 2-(2,4-diaminophenoxy)ethanol, 1-methoxy-2-amino-4-(2-hydroxyethylamino)benzene, 2,6-bis(2-hydroxyethylamino)-1-methylbenzene, and/or one of the physiologically compatible salts thereof as coupler; and (D) at least one m-aminophenol derivative from the group 3-aminophenol, 5-amino-2-methylphenol and/or one of the physiologically acceptable salts thereof as coupler, wherein the molar ratio of all the developers of group (A) included in the agent to all the developers of group (B) included in the agent, i.e., the molar ratio (A)/(B), has a value of at least 1.2.

A cosmetic agent for dyeing keratinous fibers, especially human hair, includes at least one specific protein-siloxane polymer and at least one oxidation dye precursor and/or a direct dye, where the use of the at least one protein-siloxane polymer leads to improved care of the keratinous fibers. A corresponding packaging unit (kit of parts) and a method for dyeing keratinous fibers include the cosmetic agent. Lastly, the cosmetic agent is used to care for keratinous fibers with an enhanced care effect.

A hair coloring composition is provided and includes, in a cosmetically acceptable carrier, one or more acrylate monomers. The one or more acrylate monomers have the general Formula I:

##STR00001## wherein R.sub.1 is selected from the group consisting of H, CH.sub.3; n=0, 1, 2, 3; R.sub.2 is selected from the group consisting of H, CH.sub.3, and OH; R.sub.3 is selected from the group consisting of H, CH.sub.3, CH.sub.2OH, CH.sub.2OCH.sub.3, CH.sub.2Cl, CH.sub.2Br, Cl, and COOH.

The hair coloring composition has a pH from 8 to 12.

Compounds, and agents for oxidatively changing the color of keratinic fibers that include such compounds, in particular human hair, in a cosmetic carrier. The compounds are at least one oxidation dye precursor product of formula (I) and/or physiologically acceptable salt thereof,

##STR00001## in which R1, R2, R3, R4 independently of one another, stand for a hydrogen atom, a C.sub.1-C.sub.6 alkyl group, a C.sub.2-C.sub.6 alkenyl group, a hydroxy-(C.sub.1-C.sub.6)-alkyl group, a polyhydroxy-(C.sub.2-C.sub.6)-alkyl group, or a C.sub.1-C.sub.6-alkoxy-C.sub.2-C.sub.6-alkyl group, n stands for an integer from 2 to 6, and Z stands for an aromatic or aliphatic heterocycle or for an aromatic or aliphatic carbocycle.

Systems and methods for keeping various compounds stable in different ampoules in an applicator. Upon breaking open the ampoules, the compounds are mixed and applied. In one embodiment, the resulting mixture is a long lasting waterproof sunscreen for use on skin. In another embodiment, the resulting mixture applied one or more coatings to an article and may subsequently accomplish sustained release and/or transdermal deliver of a therapeutic.

The invention relates to a method for dyeing keratin fibres, in particular human hair, in which alter applying and allowing a thickened pre-treatment agent in the form of a lightening or bleaching agent (M1), comprising at least one oxidation agent, to react, a dye (M2) is applied directly and is allowed to react without rinsing. By carrying out said method, hair can be coloured in a dyeing step and simultaneously multi-tonal dyeing with highlights is achieved.

A method for dyeing keratinous fibers, in particular, human hair, in which, after a thickened pre-treatment agent (M1) containing no oxidation dye precursors has been applied and allowed to react, a coloring agent (M2) is applied and allowed to react immediately thereafter and without rinsing. By carrying out said method, hair can be colored in a dyeing step and simultaneously multi-tonal dyeing with highlights or lowlights can be achieved.

A process for synthesizing 2-methoxymethyl-1,4-benzenediamine (V-a), its derivatives of formula (V) and the salts thereof, which comprises a radical halogenation step of formula (II). The final product can be 2-methoxymethyl-1,4-benzenediamine of formula (IV-a).