composition for dyeing keratin fibers, process for dyeing keratin fibers, multi-compartment device and use of a composition.

摘要

composition for dyeing keratin fibers, process for dyeing keratin fibers, multi-compartment device and use of a composition. The present invention relates to a composition for dyeing keratin fibers, and in particular keratin fibers such as hair, comprising 2,3-diamino-6,7-dihydro-1 h, 5h-pyrazolo [1]. 2-a] pyrazol-1-one or one of its addition salts, as an oxidation base, at least one coupler, at least one surfactant chosen from oxyalkylenated or glycerolated fatty alcohols, anionic surfactants of sulfate or sulfonate type and amphoteric betaine surfactants, and at least one oxidizing agent, wherein the pH of the composition ranges from 5.5 to 7.5. The present invention provides a coloration of keratin fibers dyed red, copper or mahogany that are sufficiently visible in natural or dyed hair and uniform from roots to ends.