Caribbean Solutions SolGuard SPF 25-6oz. Marine and Reef Freindly Natural SolGuard SPF 25 sunscreen is a biodegradable, non-toxic, blend of natural/organic skin conditioning ingredients and natural sunscreens. 9% Natural Titanium Dioxide and 3.5% Zinc Oxide provide Broad Spectrum Protection. The natural ingredients, including Cucumber extracts; Organic Aloe Leaf and Kukui Oil assist the skin’s ability to hydrate and cool itself. Added, are tropical plant extracts that are natural photo-receptors that assist screening UV rays. Wild Pansy; Hibiscus and Green Coffee Bean not only are skin conditioners, but act as natural preservatives, as well. No nano-technology is used in the processing of our natural minerals, Titanium Dioxide and Zinc Oxide.