This award-winning vitamin C facial serum is a founder favorite that's loved by all skin types. The high-potency formula is clinically proven to improve hydration and decrease the appearance of fine lines. Hyaluronic acid helps to lock in hydration and supports the look of plump, bouncy skin. Formulated with multiple forms of vitamin C to help brighten the skin, fight the appearance of dullness and reduce signs of environmental damage. A bestselling facial serum with multiple forms of vitamin C helps to brighten, hydrate and improve the appearance of lines.