As the need to protect your skin from harmful rays becomes more of a concern for you and your family, so does the need to protect our water. With Reef Safe, you can have both. Reef Safes biodegradable formula is scientifically proven to be non-toxic to sea-life. You can apply without worry, knowing your skin and environment will have the ultimate protection. Great for divers and snorkelers who care about their environment. Free with any order over $300.