Source: https://reeflabel.com/ingredients/amiloxate/ Chemical (organic) UV filter · Reef research: Limited data # Amiloxate (IMC) A cinnamate UVB filter used outside the US. Banned in - Palau Also excluded where only mineral sunscreen is allowed - Maui County - Hawaiʻi County Not approved in the US, so US sunscreens do not contain it. ## Where it’s restricted Named in the law or guidance | Location | Status | Since | | --- | --- | --- | | [Palau](https://reeflabel.com/locations/palau/) [law text ↗](https://www.palaugov.pw/wp-content/uploads/2018/10/RPPL-No.-10-30-re.-The-Responsible-Tourism-Education-Act-of-2018.pdf) | In force | January 1, 2020 | ### Also not allowed under mineral-only rules Amiloxate (IMC) isn’t named in these laws, but they allow only mineral (zinc oxide or titanium dioxide) sunscreens, so a product containing it is excluded anyway. - [Maui County (Maui, Molokaʻi, Lānaʻi)](https://reeflabel.com/locations/maui-county/) (in force since October 1, 2022) - [Hawaiʻi County (Big Island)](https://reeflabel.com/locations/hawaii-county/) (in force since December 1, 2022) ## What the reef research says Mitchelmore et al. (2019) found amiloxate below the limit of detection in sediment at sites near coral reefs, as tabulated in a 2021 critical review of UV filters and corals. A 2025 study of Polish freshwater recreational lakes found it among the main contributors to moderate cumulative risk, with localized high-risk values at Kryspinów, but those sites were freshwater, not reef. In a controlled off-site experiment with surface water in natural light, O’Malley et al. (2021) estimated a 6.6 hour half-life for amiloxate. No coral toxicity study of amiloxate was found in the sources read for this entry, so its effect on corals is unknown. Sources (4) - [O'Malley et al. 2021, Sci Total Environ 754:142373 (PubMed record)](https://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=33254898&rettype=abstract&retmode=text) - [Stolecka et al. 2025, Water Res 279:123423 (PubMed record)](https://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=40056475&rettype=abstract&retmode=text) - [Mitchelmore et al. 2021, Environ Toxicol Chem: critical review of organic UV filter exposure, hazard and risk to corals (PMC)](https://pmc.ncbi.nlm.nih.gov/articles/PMC8048829/) - [FDA: Questions and answers on FDA regulatory actions on over-the-counter sunscreen](https://www.fda.gov/drugs/understanding-over-counter-medicines/questions-and-answers-fdas-regulatory-actions-over-counter-sunscreen) ## What to look for instead - [Zinc Oxide](https://reeflabel.com/ingredients/zinc-oxide/) - [Titanium Dioxide](https://reeflabel.com/ingredients/titanium-dioxide/) **Related ingredients:** [Octinoxate](https://reeflabel.com/ingredients/octinoxate/), [Octocrylene](https://reeflabel.com/ingredients/octocrylene/) Last reviewed October 14, 2026. ### Label names we match - amiloxate - isoamyl p-methoxycinnamate - isoamyl methoxycinnamate ### Regulatory status **Wikidata:** [Q17012246](https://www.wikidata.org/wiki/Q17012246) **US FDA:** Not approved in the US. **EU:** Approved, max 10%. **Protects against:** UVB.