Trilaureth-4 Phosphate

Trilaureth-4 phosphate is the phosphate ester of ethoxylated lauryl alcohol used as an anionic emulsifier and dispersant. Lotions, sunscreens, and makeup use it to build stable oil-in-water systems and improve spreadability.
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Ingredient Snapshot

Overview
Helps keep oil and water blended for smoother, more even application.
Category
Emulsifying
Type
Emulsifier

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Supports smooth, even application and helps products feel uniform rather than streaky, aiding formula consistency to minimize separation during use.

Uses In Skincare & Cosmetics

Found in lotions, gel-creams, fluid sunscreens, and liquid foundations to help blend oil and water into stable, easy-spreading textures.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Surfactant nature means mild irritation or stinging can occur, especially on compromised skin or near the eyes. Generally safe for cosmetic use when properly formulated; patch test if sensitive.

Is Trilaureth-4 Phosphate a Good Ingredient?

It rates Good for effective anionic emulsification and dispersion that produce stable, smooth-spreading formulas. Performance is reliable across lotions and fluid sunscreens, but it's still a surfactant and may not suit very reactive skin, which caps the rating below Great.

Products with Trilaureth-4 Phosphate

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