Helps prevent sunburn and photodamage caused by UVA/UVB exposure. Higher SPF gives more sunburn protection. If used as directed with other sun protection measures (see Directions), decreases the risk of skin cancer and early skin aging caused by the sun. Protects your skin by acting like thousands of tiny shields that reflect UV rays. UVA/UVB protection. Trusted by dermatologists for over 20 years. Cap changes color in harmful UV light. Water resistant (80 minutes). We love the reef no oxybenzone or octinoxate.