Visibly reduces expression lines and deep wrinkles. RoC Retinol Correxion Deep Wrinkle Night Cream is an intensive anti-wrinkle treatment that works through the night, visibly reducing expression lines and deep wrinkles. This exclusive combination of pure Retinol and an essential mineral complex is clinically proven to visibly reduce deep wrinkles while you sleep. When you apply, the upper layers of your skin are firmed leading to a visible reduction in expression lines. The formula starts to work immediately as pure Retinol penetrates deep within the skin's surface to help fill in even your deep wrinkles.