Agent useful in oxidative dye for human hair for improving gray coverage, the equalization and color intensity, comprises p-phenylenediamine derivative and/or its salt as oxidation dye precursor of developer type in cosmetic carrier
Die Erfindung betrifft ein Mittel zum oxidativen Färben von keratinhaltigen Fasern, insbesondere menschlichen Haaren, welches als Oxidationsfarbstoffvorprodukt vom Entwickler-Typ mindestens eine oligomere Verbindung der Formel (I),enthält.Agent comprises at least one p-phenylenediamine derivative (I) and/or its salt as oxidation dye precursor of developer type in a cosmetic carrier. Agent comprises at least one p-phenylenediamine derivative of formula (I) and/or its salt as oxidation dye precursor of developer type in a cosmetic carrier. R1, R2 : H, 1-6C alkyl, 2-6C alkenyl, 1-5C hydroxyalkyl, 2-6C polyhydroxyalkyl, 1-6C alkoxy or halo R3, R4 : H, a C1-C6 alkyl, 2-6C alkenyl, 2-6C hydroxyalkyl, 2-6C polyhydroxyalkyl, 1-6C alkoxy-2-6C alkyl, cyano-1-6C alkyl or aryl-1-6 alkyl n : 2-6 and m : 2-4. Independent claims are also included for: (1) the p-phenylenediamine derivative (I) and (2) a packaging unit (kit-of-parts) comprising separate fabricated containers, which comprise at least one container A comprising at least one agent and at least a container B1 comprising at least one oxidizing agent in the cosmetic carrier. [Image].
