Researchers claimed negative health effects, bleaching, and enhanced mortality after exposure of corals to several widely used ultraviolet (UV) filters used in sunscreens and other personal care products (PCPs). Dr. Phi’s new formula contains none of the harmful chemicals that could cause the aforementioned harm to corals and marine life. Dr. Phi reef-safe sunscreen gives the same level of wide-spectrum UVA and UVB protection for you without harming the environment.