La Roche-Posay Retinol B3 anti-aging serum is formulated with pure and gradual release retinol, vitamin B3, and glycerin. This concentrate with a lightweight, hydrating texture visibly reduces the look of lines, wrinkles and premature sun damage. This serum features a retinol complex combining pure retinol and gradual release retinol, which acts gradually for efficacy but more importantly tolerability on skin. Furthermore, for tolerability this serum also contains soothing ingredients, vitamin B3 and glycerin.Key Ingredients:Pure Retinol: A derivative of vitamin A (retinoic acid) that is widely recommended by dermatologists. When used in our formulas, it helps promote surface cell turnover and improves the appearance of fine lines and wrinkles.Niacinamide: A form of vitamin B3, niacinamide is a water soluble vitamin. It is widely used in dermatology for its soothing properties, helping restore skin's moisture barrier, and visibly fading skin discolorations.Hyaluronic Acid (HA): A polysaccharide (carbohydrate polymer) found naturally within the skin. When used in a formula, HA is an effective humectant that can hold a large amount of water to help maintain the skin's moisture.Key Benefits::Skin immediately looks more luminous, toned, and hydrated.Over time, signs of premature sun damage are reduced; skin looks more toned and recovers it youthful bright look.This retinol serum is an allergy tested formula with fragrance.This anti-aging serum is: suitable for sensitive skin, and dermatologist tested.