Use of diketopiperazine derivatives of the formula I,
in which the variables have the meanings explained in the description, as photostable UV filters in cosmetic and pharmaceutical preparations for protecting the human skin or human hair against solar rays, alone or together with compounds which absorb in the UV region known per se for cosmetic and pharmaceutical preparations.
使用式 I. 的二
酮哌嗪衍
生物作为光稳定紫外线过滤剂,用于化妆品和药物制剂,保护人 类皮肤或头发免受太阳光的伤害、
其中的变量具有说明中解释的含义,在化妆品和药物制剂中用作光稳定性紫外线过滤 剂,保护人体皮肤或头发免受太阳光的伤害,可单独使用,也可与本身就可吸收紫外 线的化合物一起用于化妆品和药物制剂。