| 摘要 |
Cosmetic composition comprises: (a) a benzimidazole derivative; (b) a cinnamic acid derivative; and (c) and an organic UV-A filter. Cosmetic composition comprises: (a) a benzimidazole derivative of formula (I); (b) a cinnamic acid derivative; and (c) and an organic UV-A filter. X = S, NH, NR1 or O R1 = 1-20 C alkyl, 2-20 C alkenyl, 3-15 C cycloalkyl, 6-12 C aryl, (6-12 C) aryl (1-6 C) alkyl, 2-21 C alkoxycarbonyl or 5-12 C heteroaryl, all optionally substituted by 1-6 C alkyl, 1-16 C alkoxy, 6-12 C aryloxy, NH2, OH, C(O)NR2R3, C(O)O-R4 or Si(O-R7)3 or interrupted by ether bonds R2, R3 = H or 1-6 C alkyl R4 = H, 1-16 C alkyl, 6-12 C aryl or CH(R6)CH2(O-CH(R6)CH2)nO-R5 R5 = 1-4 C alkyl R6 = H or Me R7 = 1-4 C alkyl n = 0-4 R8-R15 = H, NH2, NO2 or R1
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