Serious about your skin? You’ll love the Retinol 0.5 serum powered by pure, potent, high-concentration retinol. It’s the gold-standard ingredient dermatologists recommend for adults of every age to prevent signs of visible aging you can’t see yet AND reverse advanced visible signs of aging. This patent-pending formula was shown to improve the appearance of wrinkles, uneven skin tone and loss of facial firmness. Used together with one of our power house Skin Care Regimens; it's a game changer!