GuidanceUnited Statesprotected-area

U.S. National Parks with coral reefs (NPS guidance) sunscreen guidance

The National Park Service advises visitors to coral-reef parks, such as Dry Tortugas, Biscayne, Virgin Islands National Park and War in the Pacific, to avoid sunscreens containing oxybenzone, octinoxate or avobenzone. It recommends products whose only actives are zinc oxide or titanium dioxide. This is guidance, not a ban. Separate local laws may still apply, for example in the USVI and Hawaii.

Last verified October 14, 2026 · National Park Service guidance: 'Protect Yourself, Protect the Reef' (not a regulation)

Ingredients to avoid

IngredientAlso calledType
Oxybenzonebenzophenone-3, benzophenone 3UV filter
Octinoxateethylhexyl methoxycinnamate, octyl methoxycinnamateUV filter
Avobenzonebutyl methoxydibenzoylmethane, parsol 1789UV filter

The details

  • NPS says it has found high concentrations of some of these chemicals in water samples taken around coral reef sites.
  • NPS warns that a 'reef-friendly' label can still hide harmful ingredients, and advises checking the active-ingredient list.
  • It also recommends UV-protective clothing, shade, and avoiding midday sun to reduce the amount of sunscreen entering the water.
  • No effective date is given because this is guidance, not a legal requirement. The NPS page was last updated September 30, 2022.

Sunscreens that meet this guidance in U.S. National Parks with coral reefs

388 of 988 products we track pass; 599 don’t.Browse all 388 →

By brand

Common questions

What sunscreen ingredients are banned in U.S. National Parks with coral reefs?

Oxybenzone, Octinoxate, Avobenzone.

When did the U.S. National Parks with coral reefs sunscreen rule take effect?

No fixed effective date.

Which sunscreens are allowed in U.S. National Parks with coral reefs?

Of the 988 products we track, 388 meet the U.S. National Parks with coral reefs rule. The simplest choice is a sunscreen with only zinc oxide and/or titanium dioxide as active ingredients.