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Ethylhexyl Triazone

Uvinul T 150 — one of the most powerful UVB filters in sunscreen cosmetics. Exceptional photostability, high effectiveness at low concentration (2%), does not penetrate the skin. Allowed in the EU, Korea, and most countries worldwide.

UVB filterUvinul T 150photostablechemical SPF

✓ Safe

Comedogenic Rating

0/5

Irritation Potential

0/5

What is it?

Ethylhexyl Triazone — an ester of 2,4,6-tris[4-(2-ethylhexyl-1-oxo-1-propenyl)phenyl-amino]-1,3,5-triazine. Oil-soluble filter, absorbs UVB (280–320 nm) with a peak at ~314 nm. Maximum allowed concentration in the EU: 5%, in most Asian countries: 5%. Actual effective concentration: 2–3%. Photostable — does not decompose under UV. Not approved by the FDA for the US market.

Sunscreen formulas for the EU, Korea, Japan, Australia markets. Often combined with bis-ethylhexyloxyphenol methoxyphenyl triazine (Tinosorb S) for broad spectrum.

Key Benefits

✦

Exceptional UVB effectiveness at low concentration

Ethylhexyl Triazone has one of the highest molar absorption coefficients among UVB filters — less substance is needed to achieve the same SPF. A concentration of 2% makes a significant contribution to the SPF formula. This allows for a reduction in the overall filter load in the formula, improving texture and reducing the risk of irritation.

◈

Absolute photostability

Unlike octocrylene (ethylhexyl methoxycinnamate), which decomposes under UV and loses effectiveness, Ethylhexyl Triazone is photostable — maintains protective action throughout sun exposure. No reactivation with antioxidants is needed. Stabilizes other filters in the formula.

✧

Does not penetrate the skin — systemic safety

High molecular weight and oil solubility ensure minimal penetration through the stratum corneum. Studies show absence in blood and urine even with daily use. Complies with EU Cosmetics Regulation 1223/2009. Not an endocrine disruptor (unlike some standard filters).

Suitable for

for all skin typesfor sensitive skinfor skin under intense sun

Main Actions

✓ UVB protection (SPF)✓ photostability✓ stabilization of other filters

Why is ET not in American sunscreens?

The US is the only major country where the FDA has not approved Ethylhexyl Triazone (and most modern filters). Reason: outdated regulatory system — new filters require a full NDA process, like a pharmaceutical product. The EU, Korea, Japan, Australia have long approved EHT. This is why Korean and European sunscreens with ET have a lighter texture and higher SPF effect compared to American ones.

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