Ethylhexyl Triazone: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 27, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Ethylhexyl Triazone?

Ethylhexyl Triazone is a synthetic sunscreen agent whose chemical name is benzoic acid, 4,4′,4”-(1,3,5-triazine-2,4,6-triyltriimino)tris-, tris(2-ethylhexyl) ester. The molecule belongs to the triazine family and features three ethylhexyl groups that help it dissolve in oils, making it easy to blend into lotions, creams and sprays. First introduced in Europe in the late 1990s, it was developed to meet growing demand for broad-spectrum sun protection with better photostability. To manufacture it, chemists react a triazine core with ethylhexyl alcohols in a multi-step esterification process carried out under controlled temperature and pH. The result is a highly pure, oil-loving powder that disperses smoothly in cosmetic bases.

You will most often find Ethylhexyl Triazone in everyday sunscreens, BB creams, tinted moisturizers, anti-aging day creams, makeup primers, after-sun lotions and lip balms with SPF claims. Because it is oil-soluble and exceptionally stable, it partners well with other filters in both water-resistant beach products and lightweight city formulas.

Ethylhexyl Triazone’s Cosmetic Benefits/Uses

In skin care and makeup Ethylhexyl Triazone serves three main roles that boost both product performance and skin protection

  • UV filter: Provides very high protection in the UV-B range so finished products can reach high SPF values without feeling heavy or greasy
  • UV absorber: Converts incoming UV energy into a harmless low-level heat that never reaches the skin helping prevent sunburn and long-term photoaging
  • Light stabilizer: Shields delicate ingredients such as antioxidants colors and fragrances from UV-induced breakdown which helps extend shelf life and maintain a product’s look and scent

Who Can Use Ethylhexyl Triazone

Ethylhexyl Triazone suits most skin types including dry, normal, combination, oily and even sensitive skin because it has a low irritation profile and leaves little to no greasy residue. Those with very oily skin may appreciate its lightweight finish while sensitive users benefit from its photostability that reduces the need for higher concentrations of other filters that can sting or burn.

The molecule is fully synthetic and not derived from animal sources so it is considered suitable for both vegetarians and vegans. As with any cosmetic ingredient regional regulations on animal testing apply to finished products rather than the raw material itself.

Regulatory bodies such as the EU Scientific Committee on Consumer Safety have reviewed Ethylhexyl Triazone and consider it safe for use in pregnancy and while breastfeeding when used within approved concentration limits. This is not medical advice and pregnant or nursing individuals should confirm any skincare routine with their healthcare provider.

Unlike exfoliating acids or retinoids Ethylhexyl Triazone does not increase photosensitivity. In fact it reduces UV exposure. It can be paired with almost any other active ingredient without known incompatibilities.

Potential Side Effects/Adverse Reactions

Side effects from topical Ethylhexyl Triazone vary from person to person. The points below list potential reactions yet they are uncommon and most users will not experience them when the ingredient is properly formulated and used as directed.

  • Mild skin irritation such as redness or itching
  • Allergic contact dermatitis in individuals with specific sensitivities
  • Eye irritation if the product accidentally enters the eyes
  • Clogged pores or breakouts in extremely acne-prone skin when used in very rich formulations

If any of these effects occur discontinue use and consult a qualified healthcare professional.

Comedogenic Rating

Rating: 1 / 5

Ethylhexyl Triazone is an oil-soluble molecule but it sits on the skin surface and is used at low percentages, so it is very unlikely to clog pores on its own. Most clinical and consumer reports show minimal instances of breakouts directly linked to this filter. Those prone to acne or congestion can generally use products containing Ethylhexyl Triazone without added risk, provided the overall formula is lightweight and non-greasy.

Any pore-clogging potential usually stems from richer emollients paired with the filter rather than the filter itself, so texture and supporting ingredients matter more than its presence.

Summary

Ethylhexyl Triazone is a synthetic UVB filter that soaks up harmful rays and converts them into a low level of heat, helping products reach high SPF ratings while staying light and stable. It also shields delicate ingredients from light-induced breakdown, which keeps colors, fragrances and antioxidants working longer.

Its photostability, ease of formulation and good skin feel have made it a popular pick in European and Asian sunscreens though availability can be patchy in regions with stricter regulatory hurdles. Overall safety data are strong: it shows low irritation potential, no known hormonal activity and excellent performance at concentrations approved by major authorities.

While the ingredient itself poses little risk, everyone’s skin is unique. Give any new product a quick patch test before regular use to make sure it meshes well with your skin.

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