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PEG-10

Also known as: Polyethylene Glycol 10

Low concern

Considered safe by the Cosmetic Ingredient Review at typical use levels. The main caveat is potential 1,4-dioxane contamination from ethoxylation, which reputable manufacturers remove via vacuum stripping.

What it is

Polyethylene glycol with an average of 10 ethylene oxide units, a water-soluble synthetic polymer.

Cosmetic humectant, solvent, and surfactant base; PEGs in food are limited to specific grades and applications.

Why it's flagged

Possible trace 1,4-dioxane contamination from manufacturing

Regulatory status

United States — FDA

Certain PEGs permitted as direct/indirect food additives (21 CFR)

European Union — EFSA

Some PEGs evaluated for pharmaceutical use

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