What does sunscreen do to the ocean?

Sunscreen can negatively impact ocean ecosystems due to certain chemicals, such as oxybenzone and octinoxate, which can harm coral reefs and marine life. These substances may cause coral bleaching, disrupt reproductive systems in fish, and contribute to the decline of marine biodiversity. Additionally, when washed off in water, these chemicals can accumulate and persist in the environment, further threatening aquatic health. To mitigate these effects, many are turning to reef-safe sunscreen options that avoid harmful ingredients.