EltaMD UV Sheer Broad-Spectrum Facial Sunscreen SPF 50+ is a lightweight oil-free hydrating sunscreen formulated with Sodium Hyaluronate (HA) to help the skin retain moisture and soothes the skin. Natural mineral Zinc Oxide protects the skin from damaging UVA/UVB sun rays. Tetrahexyldecyl Ascorbate (Vitamin C), an antioxidant that helps diminishes the visible signs of aging. The product feels silky to the touch and light on the skin without any shine. Quick absorbing and sweat resistant formula protects up to 80 minutes.