Neutrogena Hydro Boost 3D Treatment Mask helps you achieve 5 dimensions of ideal healthy skin – hydrated, luminous, bouncy, firm and smooth. Our innovative Moisture Sensor Complex effectively replenishes moisture when you need it most whilst helping repair and rebuild the skin barrier to lock that moisture in. A unique formula that bounces back, 3D Treatment Mask improves the look of skin overnight to effectively recharge hydration so that you wake up to amazingly hydrated, soft and supple skin in the morning. The Science of Hydration. Hyaluronic Acid – Boost hydration for smooth, supple skin. Antioxidant Lemon Peel Formula – Helps to repair and reinforce the skin’s barrier. Trehalose – Naturally found ingredient known for its moisture resurrection properties for added hydration lock.