Much of the inner reef at Oahu's Hanauma Bay is dead after decades of tourism. The state may sign a law banning over-the-counter sunscreens believed to harm coral. Caleb Jones/AP hide caption toggle caption Caleb Jones/AP The Two-Way Hawaii Approves Bill Banning Sunscreen Believed To Kill Coral Reefs May 2, 2018 If Gov. David Ige signs the bill, popular sunscreen brands including Coppertone, Banana Boat and Hawaiian Tropic will be illegal. Lawmakers say they contain chemicals harmful to delicate marine life.