Reduces the appearances of wrinkles: replumps skin with moisture. Defines contours: skin looks fuller, it bounces back. Countours appear more defined. The innovative applicator helps deliver the optimal daily dose of serum. It is designed to protect the formula from air and light so it remains in its purest state.Our highest concentration of Hyaluronic Acid: Revitalift Renew Serum is 10 times more concentrated with hyaluronic acid than the average L'Oréal Paris day cream.