Bemotrizinol

Best-in-class broad-spectrum organic UV filter with outstanding safety and efficacy profile. Dual UV peaks at approximately 310 nm and 340 nm with photostability and high molecular weight (627 Da) that remains on skin surface. No endocrine activity confirmed in regulatory assessment. Functions as triplet-state quencher stabilizing avobenzone and other photolabile filters. Approved at 10% in EU, Australia, and Japan with over a decade of safe global use. FDA Proposed Administrative Order OTC000039 proposes GRASE status at 6% with determination anticipated March 2026, which would make it the first new US monograph sunscreen ingredient since 1999. The EU classifies Bemotrizinol as "permitted". Safety rating: EXCELLENT.

Bemotrizinol EU regulatory status: permitted. Maximum allowed concentration: 10%. This is based on EU Regulation 1223/2009 and its amendments.

Bemotrizinol functions as: Broad-spectrum oil-soluble organic UV filter with dual absorption peaks at approximately 310 nm and 340 nm. Photostabilizer for avobenzone and other photolabile filters via triplet-state energy dissipation through S1→S0 internal conversion pathway. High molecular weight of 627 Da results in minimal skin penetration and surface-film behavior.. It is classified as a Active Ingredient in our database. CAS number: 187393-00-6.

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.