What Hawaii's Sunscreen Ban Actually Covers (It's Narrower Than You Think)
Hawaii's famous ban covers only two ingredients, which is exactly why a Hawaii compliant label does not mean a product is reef-safe.
Hawaii Revised Statutes 342D-21, as codified in the 2025 statutes, prohibits the sale or distribution of any sunscreen containing oxybenzone or octinoxate without a healthcare provider's prescription; the law (Act 104 of 2018) took effect January 1, 2021, making Hawaii the first US state to ban reef-harming sunscreen chemicals.
Legal and conservation observers note that Hawaii's statute targets only oxybenzone and octinoxate, so consumers should read the full ingredient list rather than assume a Hawaii compliant claim guarantees a fully reef-safe product.
Questions we get a lot
What does Hawaii's sunscreen ban actually prohibit?
Hawaii Revised Statutes 342D-21 prohibits the sale or distribution of any sunscreen containing oxybenzone or octinoxate without a healthcare provider's prescription. It covers only those two ingredients. The law stems from Act 104 of 2018 and took effect on January 1, 2021.
Does Hawaii compliant mean a sunscreen is reef-safe?
Not necessarily. Hawaii's law only bans oxybenzone and octinoxate, so a Hawaii compliant product could still contain other ingredients flagged by reef-safe guides, such as octocrylene or avobenzone. The narrow scope of HRS 342D-21 is exactly why the label can be misleading. Reading the full ingredient list is the reliable approach.
When did Hawaii's sunscreen ban take effect?
The ban was enacted as Act 104 of 2018 and took effect on January 1, 2021, making Hawaii the first US state to ban reef-harming sunscreen chemicals. It is now codified as Hawaii Revised Statutes 342D-21. The prohibition applies to oxybenzone and octinoxate without a prescription.
r/Hawaii: 'Heading to Maui and confused about the sunscreen ban. Does Hawaii compliant on the bottle mean it's actually reef-safe?'