| 摘要 |
PROBLEM TO BE SOLVED: To provide a hair treating agent that is applied after applying a reducing agent for straightening curly hair in straightening treatment of curly hair and uniformly softens hair without damaging. SOLUTION: The invention relates to the hair treating agent that ends reducing reaction and enables visual observation of the ending of the reaction by comprising a pH buffer and an oxyacid metal salt, straightening curly hair uniformly without damaging total hair. The pH of the hair treating agent is preferably 2 to 4, and the pKa of the acid composing the pH buffer is preferably 2 to 4. The oxyacid metal salt is preferably copper gluconate and the amount thereof is 0.1 to 10% by weight. COPYRIGHT: (C)2007,JPO&INPIT
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