| 摘要 |
PROBLEM TO BE SOLVED: To provide a hair washing agent having an excellent effect improving optical or mechanical properties of hair. SOLUTION: This hair washing agent contains (A) 0.01-20 wt.% of anα-amino acid, (B) 0.01-5 wt.% of anα-hydroxy acid,β-hydroxy acid, 1,2-dicarboxylic acid, 1,3-dicarboxylic acid or aromatic carboxylic acid and (C) 5-40 wt.% of an anionic surfactant selected from an alkyl sulfate, alkyl ether sulfate and N-alkylamide alkanol sulfate.
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