申请人:Technoble Co., Ltd.
公开号:EP0955032A1
公开(公告)日:1999-11-10
The cosmetic preparation inhibits the biosynthesis of melanin and onset of erythema, prevents the occurrence of inflammation, improves water content of the skin and thus, contributes to improved skin quality and to the prevention of skin aging. In addition, the preparation is less irritant and highly stable. The preparation contains the 2,5-dihydroxy benzoic acid derivatives expressed by Formula (I).
[In formula (1), R1 is a hydrogen atom, an alkyl group with one to 20 carbons, an allylalkyl group with seven to nine carbons, an alkali metal atom or an alkaline-earth metal atom; R2 and R3 are independently a hydrogen atom, a group expressed by the formula -COR4 (R4 is an alkyl group with one to five carbons, an alkenyl group with one to three carbons, a methoxy group or a ethoxy group) or a phophoryl group. However, R2 and R3 should not be hydrogen atoms in an identical compound.]
该化妆品制剂可抑制黑色素的生物合成和红斑的形成,防止炎症的发生,提高皮肤的含水量,从而有助于改善皮肤质量和防止皮肤老化。此外,该制剂刺激性小,稳定性高。该制剂含有由式(I)表示的 2,5-二羟基苯甲酸衍生物。
[在式 (1) 中,R1 是氢原子、1 至 20 个碳原子的烷基、7 至 9 个碳原子的烯丙基、碱金属原子或碱土金属原子;R2 和 R3 独立地是氢原子、由式 -COR4 表示的基团(R4 是 1 至 5 个碳原子的烷基、1 至 3 个碳原子的烯基、甲氧基或乙氧基)或 phophoryl 基团。但是,在相同的化合物中,R2 和 R3 不应是氢原子]。