| 摘要 |
L-Arginine or L-homoarginine compounds or their salts are used as photoprotective agents and agents for optimizing melanic response in cosmetic compositions. L-Arginine or L-homoarginine compounds of formula (I) or their salts are used as photoprotective agents and agents for optimizing melanic response in cosmetic compositions. R1 = acyl, acyloxy or an optionally N-substituted alpha-amino acid residue; R2 = OH, NH2, alkylamino, alkoxy or an optionally carboxy-substituted alpha-amino acid residue; n = 3 or 4.
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