Magnesium Ascorbyl Phosphate is a potent form of antioxidant Vitamin C, particularly in regard to protecting skin cells from UV-induced damage. It can reduce trans-epidermal water loss, thus strengthening skin’s barrier response. Vitamin C promotes collagen production and has the potential to thicken the dermis, it improves the appearance of sun-damaged skin by strengthening the skin’s repair mechanisms and enhances the effectiveness of peels and microdermabrasion. FYI: Magnesium ascorbyl phosphate is a stable version of Vitamin C. (Find this in Eye Perfect).