MD Revitalize Retinol Serum works overnight to restore and nourish. Dermatologist-developed, this serum utilizes antioxidants and niacinamide. Its formula helps to restore, brighten, and smooth skin for a revitalized complexion. With regular use, it diminishes the appearance of fine lines and wrinkles, leaving skin looking youthful. This potent serum works while sleeping, unveiling a refreshed and radiant appearance.