Ambi Even & Clear Fade Serum Retinol is a dual-action formula clinically-proven to help reduce the appearance of dark marks and skin discolorations, while improving the skin�s texture in as little as 4 weeks. Non-irritating Encapsulated Retinol allows active ingredients to penetrate deeper into the skin overnight with key ingredients Niacinamide, Hyaluronic Acid and Ceramides.