Lightweight serum with a high vitamin C content. The Ester C Total Serum absorbs quickly and offers the skin broad antioxidant protection. It helps prevent premature skin aging, evens out the appearance of dark spots and makes the skin look more elastic. Magnesium ascorbyl phosphate is a stable, water-soluble form of vitamin C, vitamin E complements the antioxidant protection, and sodium hyaluronate binds moisture. With regular use, the skin looks more radiant, firmer and more even in tone.