This retinol serum is rich in retinol and vitamin C. Retinol stimulates collagen production, reduces fine lines, and improves skin firmness. Vitamin C is an effective antioxidant, brightens skin tone, and improves dullness. It can fight against aging and dullness at the same time, making the skin smoother, more delicate, and radiant. The texture is refreshing and easily absorbed by the skin. Suitable for all skin types, continued use can restore the skin to youthful vitality.