Retinoid ester is just as effective as traditional retinol while being much gentler to the skin, making it an ideal choice for people with sensitive skin or new users of retinol. This oil works throughout the night to deliver luminous, visibly even-toned skin by morning. It is formulated with ultra-stable and gentle retinol ester and a complex of lightweight but nutritious oils that soothe the appearance of surface redness for a calm, visibly even-toned complexion.