La Roche-Posay Pure Retinol Face Serum With Vitamin B3

La Roche-Posay Pure Retinol Face Serum combines pure retinol and vitamin B3 in an anti-aging formula designed to reduce wrinkles and resurface skin. This dermatological serum is suitable for sensitive skin, providing gradual retinol release for optimal effectiveness and tolerance. The serum comes in a distinctive red glass bottle with a dropper applicator for precise dispensing. For best results, apply 3-4 drops in the evening on cleansed face and neck, followed by moisturizer. Always use sunscreen the following day, as retinol can increase sun sensitivity. The formula may turn slightly yellow when exposed to air, which is normal and does not affect its efficacy.