Is reef-safe sunscreen required in Hawaiʻi?
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Yes — Hawaiʻi state law (effective 2021) bans the sale and use of sunscreens containing oxybenzone or octinoxate. Use mineral-only (zinc oxide, titanium dioxide). Maui County extends the ban to avobenzone and octocrylene. Reef-restoration partners strictly enforce mineral-only; bring an unopened bottle if unsure.
Topics: safety, reef, regulations, what-to-bring