Triceteareth-4 Phosphate

What Triceteareth-4 Phosphate is & what it does

Triceteareth-4 Phosphate is a phosphate ester of ethoxylated cetearyl alcohol used as an emulsifier and surfactant. In sunscreen and skincare lotions it helps blend the oil and water phases into a stable emulsion and can improve the spreadability of the finished product. It is a synthetic processing ingredient that supports texture and stability rather than providing a skincare benefit of its own.

What does Triceteareth-4 Phosphate do in skincare?

Triceteareth-4 Phosphate is an emulsifier and surfactant that helps combine the oil and water parts of a formula into a stable cream or lotion. In sunscreens it can support an even, spreadable texture. It is a formulation aid rather than an active skincare ingredient.

Is Triceteareth-4 Phosphate safe?

Triceteareth-4 Phosphate is used as an emulsifier in cosmetics and is generally considered safe at the levels typically formulated. As a surfactant it works within the product structure rather than as an active. Sensitivity is uncommon but can vary between individuals.

Is Triceteareth-4 Phosphate natural or synthetic?

Triceteareth-4 Phosphate is a synthetic ingredient, made by ethoxylating and phosphating cetearyl alcohol. This manufactured origin gives it the consistent emulsifying properties needed in lotions and creams.

Sunscreens with Triceteareth-4 Phosphate

We rate 30 sunscreens that contain it, showing the top 10 by overall score:

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