| abstract |
The subject of the invention is a composition for dyeing keratin fibers, and in particular human keratin fibers such as the hair, comprising at least one diamino-N, N-dihydropyrazolone derivative, as oxidation base and a process implementing it. It also relates to derivatives of amino-N, N-dihydropyrazolone or one of its addition salts as well as derivatives of diamino-NN-dihydropyrazolone or one of its addition salts as such and their production. The present invention makes it possible in particular to obtain a coloring of keratin fibers, tenacious, resistant to light and to washing. |