La Roche-Posay Pure Retinol Face Serum with Vitamin B3 is an anti-aging serum. Formulated with pure + 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. Skin immedietly 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 serum features a retinol complex combining pure retinol and gradual release retinol, which acts gradually for efficacy but more importantly tolerability on skin. Futhermore, for tolerability this serum also contains soothing ingredients, vitamin B3 and glycerin. This Retinol serum is an allergy tested formula with fragrance. This anti-aging serum is: suitable for sensitive skin, and dermatologist tested. Use as a nightly anti-aging pure retinol serum to help reduce signs of aging and premature sun damage. How to Use: Apply 4-5 drops of the facial serum in the evening to the face and neck. Use alone and always add a moisturizer and SPF to your routine when using this product.