BioGuard Oxysheen is a non-chlorine pool shock treatment. It will destroy contaminants such as perspiration, sun tan oils, and other impurities that can affect swimmer comfort. By destroying organic waste, this product can lower your sanitizer consumption, as well as brighten and clarify your pool water. This product dissolves rapidly and completely, so swimming can resume just 15 minutes after application. Restore sparkle and clarity to your pool water with Oxysheen.