| 摘要 |
PURPOSE:The titled first agent having a low bad smell, high stability, providing the hair with neither damage nor a feeling of physical disorder, obtained by blending thiomalic acid of a reducing agent with a specific animal protein hydrolyzate, and its derivative. CONSTITUTION:2-12wt% thiomalic acid shown by the formula I is blended with 0.1-5wt% at least one of an animal protein hydrolyzate shown by the formula II (R1 is side chain of amino acid constituting animal protein hydrolyzate; n is 3-20 integer), formula III (R2 is 8-20C long-chain alkyl, or alkenyl; M is H, Na, ammonium, etc.) or formula IV, and its derivative. Thiomalic acid has a low bad smell, improved safety, and reducing action, but provides the hair with damage and a feeling of physical disorder. The agent can prevents the damage and feeling of physical disorder by blending thiomalic acid with the compound shown by the formula II-formula IV. |
