Doctors recommend the daily use of a sunblock with an SPF of 15+ (or higher) to defend against the harmful effects of the sun which can cause sunburn, premature aging and skin cancer. Solar Shade provides 45 times your natural protection against the damaging UVA/UVB rays. Solar Shade combines micronized Titanium Dioxide with Silicone that is easy to apply and transparent after application. A protective film is created utilizing Silicone, an occlusive agent, that stays on the surface of the skin eliminating irritation. There are only three ingredients that are approved by the FDA that protect skin from UVA radiation and Titanium Dioxide is the most effective one.