Sustainable Packaging! Marine & Reef Friendly Sol-Guard SPF 30 is a biodegradable, non-toxic, blend of organic skin care conditioning ingredients and natural sunscreens. 17% Zinc Oxide provides 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. Hibiscus and Green Coffee Bean not only are skin conditioners, but act as natural preservatives, as well. No Nano-Zinc!