This lightweight, overnight pro-strength face serum helps even the skin tone and reduces the appearance of fine lines and wrinkles. Powered by a high-potency advanced retinoid, this night treatment exfoliates, renews, and stimulates collagen for bright, young, and even-toned skin.Directions:Every night, apply 2-3 drops of serum in a thin layer on a clean face. Follow and seal with your regular moisturizer. Note: Some people may experience a delayed sensitized reaction to Retinol. Do not assume that you can apply this product more frequently if no reaction is seen after a few applications. Pay close attention to how your skin responds and adjust the usage accordingly.