申请人:Shiseido Company, Ltd.
公开号:EP2292208A1
公开(公告)日:2011-03-09
Problem To provide an external preparation for skin containing an alkylresorcinol and being excellent in temperature stability (especially high-temperature stability) and photostability. Means for Resolution An external preparation for skin comprising (a) from 0.01 to 5% by mass of 4-isobutyl resorcinol or a salt thereof, and (b) from 0.01 to 5% by mass of one or more selected from L-ascorbic acid or a salt thereof and a 3-O-alkyl-L-ascorbic acid or a salt thereof. If desired, (c) one or more compounds selected from (c-1) a sterol skeleton-having compound (e.g., POE phytosterols, POE cholestanols), (c-2) a vitamin E derivative, (c-3) a compound such as polyglycerin fatty acid esters, polyoxybutene-polyglycerin alkyl ethers, sucrose fatty acid esters, and (c-4) a sorbitan skeleton-having compound may be incorporated in the preparation.
问题 提供一种含有烷基间苯二酚的皮肤外用制剂,其温度稳定性(尤其是高温稳定性)和光稳定性极佳。解决方法 一种皮肤外用制剂,其成分包括:(a) 0.01%-5%(按重量计)的 4-异丁基间苯二酚或其盐;(b) 0.01%-5%(按重量计)的一种或多种选自 L-抗坏血酸或其盐和 3-O-烷基-L-抗坏血酸或其盐的化合物。如果需要,(c) 一种或多种选自 (c-1) 固醇骨架化合物(如 POE 植物固醇、POE 胆甾醇)、(c-2) 维生素 E 衍生物、(c-3) 聚甘油脂肪酸酯、聚氧丁烯-聚甘油烷基醚、蔗糖脂肪酸酯和 (c-4) 山梨坦骨架化合物的化合物可加入制剂中。