Hawaii is on track to ban two ingredients found in sunscreen that have been proven to kill coral reefs and marine life - Oxybenzone and octinoxate. Beginning in 2021. More info here . Consider being proactive and purchase more environmentally friendly sunscreen now, without these ingredients, no matter where you live. If it's not good for the reefs and other marine life, what may it be doing to lakes and streams? We're a huge fan of Suntegrity . They use zinc oxide.