TIZO stands for Titanium Zinc Oxide. The brand only uses physical, FDA-approved active sunscreen filters. TIZO mineral sunscreens helps prevent pigmentation changes and helps to slow signs of pre-mature skin aging. Since 1989, TIZO Sunscreens have been focused on “turning back the hands of time” by protecting the skin from the aging effects of the sun. Solar Radiation exposure results in dry, damaged skin with a higher risk of pigmentation changes, fine lines and wrinkles as well as skin cancer. All TIZO Sunscreens are free of chemical sunscreens, oils, preservatives and parabens. They're also REEF-FRIENDLY!