PEG-90M
AKA “Polyethylene glycol 90M, PEG 90M”
Ingredient
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Ingredient Facts
PEG-90M
AKA: Polyethylene glycol 90M, PEG 90M
Ingredient · Emulsion Stabilising · EWG: 2
Synthetic
Emulsifier
Clean
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy- (90,000 mol EO average molar ratio)
CAS #
25322-68-3
See origin →
Functions
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Viscosity Controlling
Holds Formula Together
Stabilizes Emulsion
Controls Viscosity
Holds ingredients together
Keeps product blended
Controls product thickness
Traditional Use
A very high-molecular-weight polyethylene glycol developed in the 20th century as a thickening agent and humectant. Used in skincare formulations to provide viscosity, moisture-binding, and improved texture.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR