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CLINIC BY AMRED
物理防晒和化学防晒有什么区别?为什么化学防晒需要提前涂抹?
物理防晒通过反射和散射紫外线的物理方式,涂抹后立即见效。化学防晒通过吸收紫外线的化学方式,需要时间才能被皮肤吸附,因此需要在外出前15~30分钟提前涂抹才能发挥作用。