The sun. The environment. Hard living. They can all cause wrinkles, thick skin, and uneven skintone. This pantented formula contains polyhydroxy acids, Antioxidant Vitamins A, C, and E, as well as marine botanicals and grapefruit extracts which combine to form a synergistic serum that, with regular use, can reduce the visible signs of aging and replenish your skin's moisture reserves.