| 摘要 |
Cosmetic or dermatological composition for topical use comprises a dibenzoylmethane UV filter and an amino-substituted 2-hydroxybenzophenone and does not contain p-methylbenzylidene camphor. Cosmetic or dermatological composition for topical use comprises a dibenzoylmethane UV filter and an amino-substituted 2-hydroxybenzophenone of formula (I) and does not contain p-methylbenzylidene camphor. R<1>, R<2> = H, 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl or 3-10C cycloalkenyl, or NR<1>R<2> is a 5- or 6-membered ring; R<3>, R<4> = 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, 3-10C cycloalkenyl, 1-12C alkoxy, 1-20C alkoxycarbonyl, 1-12C alkylamino, 1-12C dialkylamino, optionally substituted (hetero)aryl or a water-solubilizing carboxylate, sulfonate or ammonium group; X = H, COOR<5> or CONR<6>R<7>; R<5>-R<7> = H, 1-20C alkyl, 2-10C alkenyl, 3-10C cycloalkyl, 3-10C cycloalkenyl, (YO)oZ or aryl; Y = (CH2)2, (CH2)3, (CH2)4 or CH(Me)CH2; Z = Et, n-Pr, n-Bu or i-Pr; m, n = 0-3; o = 1-2. An Independent claim is also included for a method for improving the UV stability of a dibenzoylmethane derivative in a cosmetic or dermatological composition not containing p-methylbenzylidene camphor, comprising associating at least one compound (I) with the dibenzoylmethane derivative.
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