Both Extreme Protect SPF30 and Eclipse 50+ are multi-tasking formulas of extremely high quality that provide the best in broad-spectrum sun protection against both UVA and UVB rays. Both lessen risks of skin cancer and photoaging. Both have antioxidant and moisturizing abilities, although Extreme Protect SPF30 is more moisturizing. Eclipse SPF50+ is water resistant to forty (40) minutes. Eclipse SPF 50+ an all physical sunscreen, which means it contains only physical sunscreen actives of zinc oxide and titanium oxide. Extreme Protect SPF30 contains zinc oxide and also octinoxate. All sunscreen actives in both formulas are micro-encapsulated to provide a sheer and transparent finish. Both convey DNA photoprotection, although Extreme Protect SPF30 also contains Extremozymes for added DNA protection.