Cosmetic compositions based on 4,5-pyrazolinediones, novel 4,5-pyrazolinediones, process for their preparation and uses thereof

摘要

The present invention relates to novel cosmetic compositions, in particular for coloring the skin and/or the hair, comprising, in a cosmetically acceptable support, at least one 4,5-pyrazolinedione. The invention also relates to novel 4,5-pyrazolinediones, to processes for their preparation and to their uses in the cosmetics field.