发明授权
US5525123A Composition for simultaneous dyeing and brightening of human hair 失效
用于同时染色和增亮人发的组合物

Composition for simultaneous dyeing and brightening of human hair
摘要:
This invention comprises a hair dyeing composition based on oxidation dyestuff precursors which dyes and brightens the hair containing, besides at least one developing and at least one coupling agent, at least one metal salt and at least one ammonium compound selected from the group ammonium chloride, ammonium sulfate, ammonium carbonate, ammonium bicarbonate, and ammonium carbamate, having a pH-value between 8 and 11, preferably from 9 to 10, after admixture with an oxidizing agent in the ready-to-use preparation.
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