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US07799096B2 Agent for dyeing keratin-containing fibers 失效
染色含角蛋白纤维剂

Agent for dyeing keratin-containing fibers
摘要:
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.
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