Life Essentials Skin Care's Retinol 2.5% Serum has a powerful cocktail of antioxidants combined with Vitamin A to diminish fine lines, wrinkles, and premature aging due to sun exposure. Vitamin A boasts a long list of clinically proven restorative, anti-aging, and youthening properties. This result oriented formulation will fight free radical damage as well as restore and renew firmness, elasticity, and thickness to the skin