Overnight treatment treats skin to gentle exfoliation and generous hydration while you sleep, revealing smoother, refreshed and revitalized skin when you wake up. Gentle resurfacing action buffs away dull and rough skin, paving the way for the soft and vibrant skin underneath it. Fast-acting and quick-absorbing formula with glycolic acid provides uninterrupted exfoliation as you slumber, while antioxidants and moisturizers hydrate and nourish for brighter skin with renewed elasticity come morning. By Olay.