Description RoC Derm Correxion Fill + Treat Serum 15 ml is a treatment that visibly fills wrinkles and fine lines, instantly and over time. This serum contains three forms of hyaluronic acid to hydrate, instantly plump the skin, and smooth the appearance of wrinkles, making them less visible. With continued use, pure retinol and swertiamarin provide lasting improvements for visibly refreshed and smoother-looking skin.