The invention relates to an agent for dying fibers comprising keratin, particularly human hair, the agent comprising at least one compound of the formula:
together with at least one CH-acidic compound. The invention also relates to methods for shading oxidation dyed fibers, methods for freshening up fibers, methods for making an agent for dyeing fibers and to various compositions.
本发明涉及一种用于染色纤维(尤其是人类头发)的剂,该剂包括至少一种化合物,其
化学式为:以及至少一种CH-酸性化合物。本发明还涉及用于阴影氧化染色纤维的方法、用于使纤维焕发活力的方法、制备染色纤维剂的方法以及各种组合物。