Triethylene Glycol

Triethylene glycol (TEG) is a small, water-soluble polyether diol used in topical and hygienic products. It acts as a humectant and co-solvent, drawing moisture, supporting stability, and reducing tack in water-based systems.
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Ingredient Snapshot

Overview
A moisture-drawing ingredient that keeps water-based formulas feeling smooth.
Category
Hydration, Skin Conditioning
Type
Humectant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Draws water to the skin to help maintain suppleness while keeping formulas feeling comfortable rather than sticky, supporting a smoother, more hydrated complexion in water-based products.

Uses In Skincare & Cosmetics

Typically found in toners, essences, gel moisturizers, and water-light cleansers where a humectant and co-solvent are needed.

Comedogenic Rating

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

Safety

Usually low risk, but glycols can cause mild irritation or stinging on compromised skin or around the eyes. Patch testing is sensible for very sensitive users. No common regulatory limitations in cosmetics.

Is Triethylene Glycol a Good Ingredient?

It rates Good as an effective humectant and co-solvent that adds comfortable hydration with typically low irritation, though it's less potent than leading humectants and can be sensitizing for a small subset of users.