... better use after wash face, before sleep , or in the morning wash face before make up, directly ... use for skin, K902 Moisturing Whitening EGF powder Effect:Mechanism: KGF-2 repair the skin stratum corneum ... better use after wash face, before sleep , or in the morning wash face before make up, directly ... better use after wash face, before sleep , or in the morning wash face before make up, ...