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 concentrate designed to reduce wrinkles and improve skin texture. This dermatological serum helps renew and resurface skin while being suitable for sensitive skin types. This serum should be applied in the evening, using 3-4 drops on cleansed face and neck before moisturizer. Pure retinol can react with air and may turn yellow, but this does not affect its efficacy. For best results and skin protection, always apply sunscreen the following day. The formula contains La Roche-Posay thermal spring water and is developed to provide optimal effectiveness while maintaining skin tolerance.