Vitamin C serum has several benefits when applied to the skin. Here are some of the ways in which it acts on the human skin Antioxidant: Vitamin C is a powerful antioxidant that can help protect the skin from free radical damage caused by environmental factors such as pollution and UV radiation. Collagen production: Vitamin C can stimulate collagen production in the skin, which can help improve skin elasticity and reduce the appearance of fine lines and wrinkles. Skin brightening: Vitamin C can help reduce the production of melanin, the pigment that gives skin its color. This can help brighten the skin and reduce the appearance of dark spots and hyperpigmentation. Sun damage protection: Vitamin C can help protect the skin from sun damage and reduce the appearance of sunburn and sun damage. Hydration: Vitamin C can help improve skin hydration by reducing water loss from the skin and improving the skin’s natural barrier function. Overall, vitamin C serum can help improve the appearance and health of the skin by providing antioxidant protection, stimulating collagen production, brightening the skin, protecting against sun damage, and improving hydration.