An anti-aging night serum  Delivers a time-released dose of retinol synergistically combined with Ferulic Acid & Niacinamide  Helps improve the look of wrinkles & lines caused by aging & environmental aggressors  Unveils a firmer, smoother, more even & re-textured looking complexion  To use: At night, massage 2-3 pumps into clean, dry skin. Follow with any moisturizer of your choice from Dr. Dennis Gross Skincare. Use sunscreen during the day 