Developed with dermatologists, CeraVe Hydrating Hyaluronic Acid Serum provides the skin with much-needed moisture. This Serum contains a high concentration of hyaluronic acid and three essential ceramides, to help maintain your skin's natural protective barrier and vitamin B3 to soothe dry skin. This daily-use serum supplies the skin with up to 24 hours of moisture and nourishment and has a unique cream to gel texture, perfect for dry, dehydrated skin.