PEG-90M

PEG-90M is a very high-molecular-weight polyethylene glycol polymer used in cosmetics as a rheology modifier and film former. It increases viscosity, improves slip, suspends particulates, and forms flexible, even films in gels, serums, and color products.
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Ingredient Snapshot

Overview
A thickener that helps gels and serums feel cushiony and controlled.
Category
Tone/Texture
Type
Rheology Modifier

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Thickens watery formulas for a more controlled, cushiony application. Helps products stay uniform on skin, which can improve wear and reduce settling of pigments.

Uses In Skincare & Cosmetics

Found in mascaras and liquid foundations to support structure and film formation. Also used in essences and peel-off masks for a smooth, even layer.

Comedogenic Rating

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

Safety

Considered low toxicity and usually non-irritating, though transient eye or skin irritation can occur, particularly at higher use levels or in leave-on applications. Patch testing is prudent for reactive skin.

Is PEG-90M a Good Ingredient?

Rated Fair: it works well as a thickener and film former, but offers limited direct skin benefit and can leave a tacky feel or residue in some formulas. Sensitive users may also notice mild irritation, especially around the eye area in leave-ons, which keeps it below Good.

Products with PEG-90M

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