摘要 |
Composition for dyeing keratinic fibres comprises a carrier, at least one oxidation dye precursor, a coupler selected from 2-amino-3-hydroxypyridine and its acid-addition salts, at least one 2-electron oxidoreductase enzyme and at least one substrate for the enzyme. Used especially for dyeing human hair by applying the composition to the hair until the desired colour has developed, preferably where the composition is prepared just before use by mixing a composition containing the oxidation dye precursor(s) and coupler with a composition containing the enzyme and substrate.
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