<!-- Bemotrizinol (Tinosorb S): is it reef safe? | Reef Label -->
Source: https://reeflabel.com/ingredients/bemotrizinol/

Chemical (organic) UV filter · Reef research: Limited data

# Bemotrizinol (Tinosorb S)

A modern, photostable broad-spectrum filter long used in Europe, Asia and Australia and permitted in US sunscreens since 2026. Palau is the only reef law we track that names it.

Banned in

-   Palau

Also excluded where only mineral sunscreen is allowed

-   Maui County
-   Hawaiʻi County

## 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

Bemotrizinol (Tinosorb S) 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)

## Why it’s regulated

FDA's June 10, 2026 final order caps bemotrizinol at 6 percent and sets conditions on concentration, combinations and dosage forms. The order followed a September 23, 2024 request from DSM Nutritional Products, which asked FDA to find the ingredient generally recognized as safe and effective.

## What the reef research says

A 2020 study found no effect from bemotrizinol (BEMT) on the brine shrimp Artemia salina or the microalga Tetraselmis sp., even at 2 mg/L. A 2022 sea urchin (Paracentrotus lividus) study found that sunscreens with only MBBT, DHHB, BEMT or EHT as UV filters were more eco-compatible than products with other filters or ingredients. BEMT was measured in seawater at bathing sites in the Western Mediterranean in summer 2022. A 2026 survey of fishing-port sediment in Dalian, China, listed BEMT, named UV-627 in that paper, among compounds identified as ecological risk compounds. In a 2025 study, microbes in Toulon Harbor sediment did not degrade BEMT in microcosms.

Sources (8)

-   [Effect of 10 UV Filters on the Brine Shrimp Artemia salina and the Marine Microalga Tetraselmis sp. (Toxics, 2020)](https://pubmed.ncbi.nlm.nih.gov/32290111/)
-   [Assessing the eco-compatibility of new generation sunscreen products through a combined microscopic-molecular approach (Environ Pollut, 2022)](https://pubmed.ncbi.nlm.nih.gov/36152716/)
-   [Targeted and untargeted discovery of UV filters and emerging contaminants with environmental risk assessment on the Northwestern Mediterranean coast (Mar Pollut Bull, 2025)](https://pubmed.ncbi.nlm.nih.gov/39824136/)
-   [Unveiling pollution of benzophenone and triazine-derived ultraviolet filters in fishing-port sediment (Ecotoxicol Environ Saf, 2026)](https://pubmed.ncbi.nlm.nih.gov/42759459/)
-   [Marine sediments microbes degrade a limited repertoire of organic UV filters (Environ Sci Pollut Res, 2025)](https://pubmed.ncbi.nlm.nih.gov/40782226/)
-   [Federal Register 2026-11578: Amending Over-the-Counter Monograph M020 (June 10, 2026)](https://www.govinfo.gov/content/pkg/FR-2026-06-10/html/2026-11578.htm)
-   [FDA OTC Monographs: Final Administrative Order OTC000039 (bemotrizinol)](https://www.accessdata.fda.gov/scripts/cder/omuf/index.cfm?event=OrderDetail&orderid=OTC000039)
-   [FDA: Questions and answers on FDA's regulatory actions on OTC sunscreen](https://www.fda.gov/drugs/understanding-over-counter-medicines/questions-and-answers-fdas-regulatory-actions-over-counter-sunscreen)

## Products that contain it (2)

[

Neutrogena

Ultra Sheer Daily Face Sunscreen SPF 70 with BEMT

SPF 70 · lotion · Chemical/hybrid

Allowed in 6 of 9 placesNot allowed: Maui County, Hawaiʻi County +1

](https://reeflabel.com/products/neutrogena-ultra-sheer-daily-face-sunscreen-spf-70-bemt/)[

Neutrogena

Clear Face Sunscreen for Acne-Prone Skin SPF 60 with BEMT

SPF 60 · lotion · Chemical/hybrid

Allowed in 6 of 9 placesNot allowed: Maui County, Hawaiʻi County +1

](https://reeflabel.com/products/neutrogena-clear-face-sunscreen-acne-prone-spf-60-bemt/)

[Search these products that list bemotrizinol →](https://reeflabel.com/products/?q=bemotrizinol)

**Related ingredients:** [Ethylhexyl Triazone (Uvinul T 150)](https://reeflabel.com/ingredients/ethylhexyl-triazone/), [Bisoctrizole (Tinosorb M)](https://reeflabel.com/ingredients/bisoctrizole/), [DHHB (Uvinul A Plus)](https://reeflabel.com/ingredients/diethylamino-hydroxybenzoyl-hexyl-benzoate/)

Last reviewed October 14, 2026.

### Label names we match

-   bemotrizinol
-   bis-ethylhexyloxyphenol methoxyphenyl triazine
-   tinosorb s
-   bis-ethylhexyloxyphenol methoxyphenyl triazine (bemt)

### Regulatory status

**Wikidata:** [Q4885134](https://www.wikidata.org/wiki/Q4885134)

**US FDA:** Added to the US OTC sunscreen monograph at up to 6% by an FDA final order (OTC000039) issued June 10, 2026, effective August 9, 2026. The requesting company (DSM) has 18 months of marketing exclusivity from that date.

**EU:** Approved, max 10%.

**Protects against:** Broad spectrum UVB + UVA.
