PEG-240
AKA “Polyethylene Glycol 240, PEG 240”
Humectant
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Ingredient Facts
PEG-240
AKA: Polyethylene Glycol 240, PEG 240
Humectant · Humectant · EWG: 4
Synthetic
Humectant
Solvent
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy-, (240 mol EO average molar ratio)
CAS #
25322-68-3
Form
Liquid
See origin →
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks In Moisture
Traditional Use
A polyethylene glycol polymer developed in the mid-20th century as a solvent and humectant in cosmetics. Created to provide moisture-binding properties in skincare formulations as a replacement for traditional glycerin-based solutions.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
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