Bemotrizinol is a broad-spectrum UV filter that absorbs UVA and UVB radiation. It was recently approved by the FDA, making it the first new sunscreen active ingredient in more than 20 years. The approval creates new formulation and sourcing opportunities for U.S. personal care manufacturers and ingredient suppliers who have had fewer UV filter options than their counterparts in Europe and Asia, where bemotrizinol has been used for decades.

As a specialty ingredient supplier supporting cosmetic and personal care formulators, ChemQuest International is here to help customers incorporate bemotrizinol into their sunscreen formulations. This article explains what bemotrizinol is, why the FDA approval matters, and what your company’s formulation and sourcing teams should consider moving forward.

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What Is Bemotrizinol?

Bemotrizinol, also known as BEMT, is a highly photostable organic UV filter used in sunscreen formulations. Often recognized under the trade name Tinosorb® S, it provides broad-spectrum protection by absorbing both UVA and UVB radiation. Bemotrizinol has been approved and used internationally for more than 20 years before entering the U.S. market.

How Bemotrizinol Absorbs UV Radiation

Unlike some traditional UV filters that degrade under UV exposure, Bemotrizinol absorbs across both the UVA (320–400 nm) and UVB (280–320 nm) ranges, including the UVA-I spectrum (340–400 nm).

Bemotrizinol vs. Other U.S.-Approved UV Filters

Compared to other U.S.-approved filters, bemotrizinol’s primary advantage is its ability to combine broad-spectrum coverage and photostability in a single organic ingredient.

FilterUVAUVBPhotostable
BemotrizinolYesYesYes
AvobenzoneYesLimitedNo
OctinoxateNoYesModerate
Zinc OxideYesYesYes
Titanium DioxidePartialYesYes

The 2026 FDA Approval

The FDA bemotrizinol sunscreen approval in 2026 was made possible by the 2014 Sunscreen Innovation Act (SIA), which established a pathway for reviewing sunscreen ingredients already used internationally. Until now, the U.S. has not approved a new sunscreen active ingredient in more than 20 years, a timeline driven largely by regulatory review requirements rather than a lack of international safety data.

While bemotrizinol itself is now approved, finished sunscreen products must still comply with existing OTC sunscreen regulations, including labeling and SPF testing.

What This Means for Sunscreen Formulators and Ingredient Suppliers

The bemotrizinol FDA approval creates new opportunities for U.S. sunscreen formulation teams:

  • Develop broad-spectrum sunscreen systems with fewer UV filter combinations
  • Reduce reliance on stabilizers often required for photounstable filters
  • Improve transparency and aesthetics compared to some mineral-based systems
  • Explore new approaches for lightweight and clear sunscreen products
  • Simplify certain formulation strategies while maintaining broad-spectrum performance

Sourcing Considerations for Ingredient Buyers

Demand for bemotrizinol is expected to increase as U.S. brands begin incorporating it into new product launches. R&D and Regulatory teams should evaluate formulation compatibility, as well as suppliers’ regulatory compliance and lead times.

Direct Bemotrizinol Formulation Support

Companies formulating bemotrizinol sunscreen benefit from working with partners who are familiar with its regulatory requirements and offer comprehensive supporting ingredients, including:

Novasolve DIS (Diisopropyl Sebacate)

  • Ester used to help solubilize and distribute oil-soluble UV filters.
  • Supports high UV filter loading and can help reduce crystallization issues.
  • Improves spreadability and film uniformity.
  • Particularly useful for high-SPF and high-UVA protection formulations.

Novasolve EHIN (Ethylhexyl Isononanoate)

  • Fast-spreading emollient that improves application and sensory properties.
  • Helps offset the heavier feel often associated with higher UV filter concentrations.
  • Supports uniform film formation and improved aesthetics.

Novasolve ININ (Isononyl Isononanoate)

  • Premium emollient that delivers a dry, silky after-feel.
  • Helps formulators create elegant daily-use facial sunscreens.
  • Particularly valuable for premium SPF, fluid SPF, and serum-SPF concepts.

CQ PVP/VA 73W (VP/VA Copolymer)

  • Water-based PVP/VA copolymer that forms a flexible, durable film on the skin.
  • Can improve water resistance, sweat resistance, and rub resistance in sunscreen formulations.
  • Helps maintain a more uniform sunscreen film during wear, supporting SPF retention and real-world performance. Particularly effective in sports sunscreens, water-resistant products, and long-wear facial SPF formulations.

Broad Sunscreen System Support

Whether you’re developing a high-SPF sport sunscreen, a lightweight facial SPF, or a multifunctional sunscreen-skincare hybrid, we offer a comprehensive range of specialty cosmetic ingredients to support your formulation goals.

Novasolve DMI (Dimethyl Isosorbide)

  • Multifunctional solvent and carrier for cosmetic activities.
  • Useful in modern sunscreen-skincare hybrid products that combine SPF with brightening, anti-aging, hydration, or acne-care benefits.
  • Supports incorporation of ingredients such as niacinamide, azelaic acid derivatives, salicylic acid derivatives, vitamin C derivatives, and other skincare actives.

CQ PVP K-30P USP (Polyvinylpyrrolidone/PVP)

  • Medium molecular weight PVP that functions as a film former, binder, and adhesion promoter.
  • Can improve substantivity and film formation in spray sunscreens, mists, and lightweight SPF products. Helps support uniform application and durability of sunscreen films.
  • Effective in clear systems, sprays, and aerosol formulations.

CQ PVP K-90P USP (Polyvinylpyrrolidone/PVP)

  • High-molecular-weight PVP that provides stronger film formation and adhesion.
  • Can enhance wear resistance and film durability in sunscreen applications that require long-lasting performance.
  • Particularly useful in formulations where increased substantivity is required.
  • May be combined with other film formers to balance performance and aesthetics.

Bemotrizinol Safety Profile: What the Data Shows

Dermal Penetration and Systemic Absorption

Available data suggests bemotrizinol has relatively low dermal penetration compared to several traditional organic UV filters. A regulatory review determined that its larger molecular structure contributes to reduced absorption through the skin.

Environmental and Reef Safety Considerations

Bemotrizinol is not currently included in sunscreen ingredient bans targeting oxybenzone and octinoxate in locations such as Hawaii. However, “reef-safe” is not an FDA-regulated claim, and environmental research continues to evolve.

What Safety Data Is Still Developing

Although bemotrizinol has decades of international use, additional U.S. post-market data will continue to emerge following approval. Formulators should monitor regulatory updates and evolving environmental research as adoption increases.

FAQ — Bemotrizinol

Is bemotrizinol approved by the FDA?

Yes. The FDA approved bemotrizinol in 2026 as a sunscreen active ingredient under the Sunscreen Innovation Act.

How is bemotrizinol different from avobenzone?

Avobenzone primarily covers UVA radiation and requires stabilization. Bemotrizinol provides broad-spectrum coverage and is inherently photostable.

Has bemotrizinol been used before 2026?

Yes. It has been widely used in Europe and Asia for more than two decades before receiving FDA approval.

Where can formulators source bemotrizinol?

Formulators should work with experienced ingredient suppliers that can provide regulatory documentation, technical support, and sourcing guidance.

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