Today, people check ingredients before buying anything. When it comes to skincare products, people are more aware of what they use and how they use it. Sunscreen has become a daily essential. You've probably noticed an ingredient called Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine on sunscreens. Especially in Dermabay’s sunscreen SPF 50 PA++++, it has been included for its UV filter properties. In simpler words, it is also known as Bemotrizinol.
Here's what it actually is, how it works, and why it's part of our sunscreen's formula.
What Is Bemotrizinol?
Bemotrizinol (also called BEMT or Tinosorb S) is one of the broad-spectrum UV filters. It means it gives protection against both UVA and UVB harmful rays.
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UVA rays — linked to premature skin aging
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UVB rays — the main cause of sunburn
It absorbs UV light across the 280–400 nanometre range, with peak absorption around 310nm (UVB) and 343nm (UVA). In simple words, it can be understood that BEMT mainly works to protect your skin from harmful sun exposure.
Why This Ingredient Stands Out
1. It Doesn't Break Down in Sunlight
When exposed to prolonged UV, some UV filters may lose their effectiveness, and the process is known as photodegradation. Whereas Bemotrizinol is photostable and, instead of breaking down in the sun, it holds up throughout the day. This is part of why broad-spectrum protection matters more than SPF alone. Read our full breakdown here- Broad Spectrum Protection: Why It Matters More Than SPF Alone for Indian Skin
2. It Protects Other Ingredients, Too
Bemotrizinol also helps in stabilizing other ingredients too. It helps in enhancing the effectiveness of sunscreen. Therefore, it is widely used in higher SPF products for its stabilization properties.
3. It's Oil-Soluble
It has a unique property of oil-solubility. It can easily blend and helps in giving a lightweight and non-greasy texture to products.
Is It Widely Used and Considered Safe?
One of the common questions that may arise for any skincare product is: “Is it safe?”Bemotrizinol has been approved for cosmetic use in the European Union since 2000, at concentrations up to 10%. It's also approved in Australia and several Asian markets, and has been used in sunscreens globally for over two decades.
Recent update: On June 9, 2026, the U.S. FDA approved Bemotrizinol as a sunscreen active ingredient — the first new sunscreen ingredient approved in the U.S. in over 20 years. This follows its long-standing use and safety record in other major markets.
Bemotrizinol vs. Other Common UV Filters
| Property | Bemotrizinol | Older UV Filters (e.g. plain Avobenzone) |
|---|---|---|
| UV Coverage | Broad-spectrum (UVA + UVB) | Often UVA-focused only |
| Photostability | High — resists breakdown in sunlight | Can degrade with sun exposure unless stabilized |
| Texture in Formula | Oil-soluble, lightweight feel | Varies by formulation |
Where You'll Find It in Dermabay Sunscreen
In Dermabay Sunscreen SPF 50 PA++++, Bemotrizinol works alongside Octocrylene and Tetrahydrocurcumin to deliver broad-spectrum SPF 50 PA++++ protection, while keeping it a lightweight and non-greasy formula — shop the full formula here.
Frequently Asked Questions
Is Bemotrizinol the same as Tinosorb S?
Yes. Tinosorb S is a common trade name for Bemotrizinol (INCI name: Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine).
Does Bemotrizinol protect against both UVA and UVB rays?
Yes. It's classified as a broad-spectrum filter, meaning it covers both UVA and UVB wavelengths, with peak absorption around 310nm and 343nm.
Is Bemotrizinol new to sunscreens?
No — it has been used safely in sunscreens in the EU, Australia, and parts of Asia since 2000. It received FDA approval for use in the U.S. in June 2026.
Why is Bemotrizinol combined with other UV filters?
Because it's highly photostable, Bemotrizinol helps protect other, less stable UV filters like avobenzone from breaking down in sunlight, keeping the overall formula reliable through the day.
What concentration of Bemotrizinol is used in sunscreens?
Under EU cosmetic regulations, Bemotrizinol is permitted at concentrations up to 10% in finished products. The exact amount in any formula depends on the brand's SPF target.
Does Bemotrizinol leave a white cast?
No. As an oil-soluble chemical UV filter, Bemotrizinol blends into the skin rather than sitting on top of it, which is one reason it's chosen for lightweight, no-white-cast formulas.
How is Bemotrizinol different from mineral UV filters like zinc oxide?
Mineral filters like zinc oxide sit on the skin's surface and reflect UV rays, which can leave a visible cast. Bemotrizinol is a chemical filter that absorbs UV rays and converts them to heat, allowing for a lighter, more transparent finish.
Is Bemotrizinol considered safe for skin?
Bemotrizinol has a long safety record backed by regulatory review in the EU, Australia, and other markets, and is associated with low skin penetration. As with any skincare ingredient, anyone with specific sensitivities should patch test first.
References
1. Typology, "What Is Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine?" — https://us.typology.com/library/what-is-bis-ethylhexyloxyphenol-methoxyphenyl-triazine-and-what-is-its-utility
2. ChemicalBook, "Bemotrizinol: A New Sunscreen Active Ingredient" — https://www.chemicalbook.com/article/bemotrizinol-a-new-sunscreen-active-ingredient-considered-by-fda.htm
3. Scimplify, Bemotrizinol Ingredient Data — https://www.scimplify.com/en-us/bis-ethylhexyloxyphenol-methoxyphenyl-triazine-bemotrizinol
4. COSMILE Europe, BEMT Ingredient Profile — https://cosmileeurope.eu/inci/detail/1745/bis-ethylhexyloxyphenol-methoxyphenyl-triazine/
5. Drugs.com, "What Is Bemotrizinol?" (FDA approval, June 2026) — https://www.drugs.com/medical-answers/what-bemotrizinol-sunscreen-3582553/
6. Skinsort, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine Ingredient Profile — https://skinsort.com/ingredients/bis-ethylhexyloxyphenol-methoxyphenyl-triazine
