Forms a physical shield against environmental pollution exposure. Defends against environmental oxidative stress. Enhances skin firmness, elasticity, and texture while restoring hydration. How to Use: Dispense half a pump onto fingertips. Smooth gently over face, neck, décolletage and backs of hands. Follow with your RATIONALE Essential Six formulations for day. Signature Complexes: Our proprietary Skin Identical Antioxidant C.