3 Review(s)

Vitamin C has an excellent safety profileTrusted Source. Most people can use topical vitamin C for an extended period of time without experiencing any adverse reactions. Magnesium ascorbyl phosphate, one of the main vitamin C derivatives used in skin care, has been shownTrusted Source to have a hydrating effect on skin. It decreases transepidermal water loss, allowing your skin to better retain moisture. Vitamin C can help fade pigmentation (more on this below!) and smooth the skin’s surface to reduce dullness. This gives skin a youthful glow. Collagen production is tied to skin elasticity and firmness. When your collagen levels begin to drop, your skin may begin to sag. Applying a vitamin C serum may boost collagen production, resulting in an overall tightening.