Morning Vitamin C And Night Vitamin A Dual SerumFunction description: "Efficacy of Zao Wei C essence liquid: the texture is clear, the skin touch water is easy to absorb, and the special addition of dual vitamin C helps to improve the roughness and dullness of the skin, leaving the skin comfortable, soft, elastic and shiny. Efficacy of evening vitamin A essence: it has a lustrous texture, gently moistens the skin, specially adds double vitamin A ingredients, reduces dry lines and fine lines,