Sunscreen chemicals linked to coral reef damage and health risks

Research shows that chemical UV filters such as octocrylene, octinoxate and oxybenzone in many sunscreens contribute to coral bleaching and may harm marine life. Regions with vulnerable reefs, including the French overseas department of La Réunion, have banned these ingredients, citing their role in reef degradation and potential hormonal effects in humans. Critics argue that manufacturers often label products as “reef‑friendly” without independent verification, a practice described as greenwashing. Some formulations can also produce carcinogenic benzophenone when stored for long periods.

As concerns grow over sunscreen safety, alternatives are being evaluated. A recent test of sun‑protective clothing from brands like Odlo and Haglöfs demonstrated that long‑sleeve tops, hats and trousers can effectively shield skin without the need for sunscreen, offering a practical option for beachgoers and outdoor enthusiasts.