Glycereth-18

Glycereth-18 is a PEG ether of glycerin with roughly eighteen ethoxy units and strong water solubility. It's used to boost moisture retention, improve slip, and support texture in skin and hair formulas.
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Ingredient Snapshot

Overview
A glycerin derivative that boosts hydration for softer, smoother skin.
Category
Hydration, Skin Conditioning
Type
Humectant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Boosts skin and hair hydration for a softer, more supple feel and helps reduce dryness-related tightness. Contributes to a smooth, cushiony finish without heaviness.

Uses In Skincare & Cosmetics

Often included in serums, gels, and light moisturizers, as well as shampoos and leave-in conditioners to improve slip and comfort.

Comedogenic Rating

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

Safety

Considered low risk for most users, with occasional mild stinging possible on compromised or very sensitive skin. PEG derivatives are widely used and typically well tolerated at standard levels.

Is Glycereth-18 a Good Ingredient?

It's a dependable, water-soluble humectant that boosts surface hydration and improves slip, which earns it a Good rating for proven cosmetic performance and stability. It's low-irritating and works well across formats, but doesn't have the kind of exceptional clinical backing that would move it to Great.

Products with Glycereth-18

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