Snapshot
- Overview
- A thickener that helps gels and serums feel cushiony and controlled.
- Category
- Tone/Texture
- Type
- Rheology Modifier
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.
Like this ingredient?
Our take
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.
What it does
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.
Where you'll find it
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.
Before you use it
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.
Products with PEG-90M
