Definition of Bemotrizinol

Bemotrizinol is an organic UV filter used in sunscreen. FDA added it to the US OTC sunscreen monograph at up to 6%, subject to specific conditions and initial statutory exclusivity.

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What is bemotrizinol?

Bemotrizinol is the sunscreen active also named Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine on European cosmetic ingredient lists. It is a UV-filter ingredient, not a measure of a finished sunscreen’s protection on its own. The concentration and the rest of the formula matter, but an ingredient list cannot tell you the finished product’s tested SPF or whether it qualifies for a broad-spectrum claim.

It is useful to distinguish an ingredient’s regulatory permission from a promise about any particular bottle. A finished sunscreen has its own labeling and testing requirements. Two products containing the same filter may have different labeled SPF values, textures, and directions for use. Look to the product label rather than trying to calculate protection from the name of one filter.

The US position in 2026

The US position changed in 2026: a final administrative order issued June 10, 2026 (with typographical corrections August 10) added bemotrizinol to the over-the-counter sunscreen monograph, effective August 9, 2026. The current monograph lists it at up to 6%. An older article describing a December 2025 proposal as still pending is therefore out of date. This was a final order, not simply an announcement of a proposed approval.

There is an important qualification: the order has conditions beyond the concentration, including permitted combinations and dosage forms. It also provides a statutory period in which marketing under this order is initially limited to the requestor and its licensees, assignees or successors. Thus “permitted in the monograph” does not mean every sunscreen maker can immediately put a bemotrizinol product on US shelves under the same route.

Different markets

The US regulates sunscreen as a drug, while EU sunscreens fall under the cosmetics framework. Do not assume a formula legally marketed in one jurisdiction automatically qualifies in another. Ingredient limits are not a proxy for the tested protection of a finished product.

Using the information

If you see the long name on a European label, it identifies bemotrizinol; on a US Drug Facts panel the active may be named bemotrizinol. Neither name alone supplies the whole protection story. The finished product’s labeled SPF, broad-spectrum status, directions, and actual application matter more than a single ingredient.

For everyday protection, follow the directions on your sunscreen and combine it with shade and protective clothing. Avoid treating the maximum permitted ingredient level as a target that a consumer should look for in every sunscreen.

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