In our humble opinion, sun care is one of the best forms of self-care. Slather on daily for broad spectrum protection against UVA and UVB sun rays. Our 20% active Zinc Oxide formula is dermatologist tested and suitable for sensitive skin, plus it absorbs quickly and goes on ultra-sheer. We don't use chemical actives like oxybenzone and octinoxate, so all Native Sunscreens are compliant with the Hawaii Act 104 which was passed in an effort to protect Hawaii's reefs. Don't forget to reapply at least every 2 hours.