undefined 1
PEG-10 Propylene Glycol
AKA “Polyethylene Glycol 10 Propylene Glycol”
Humectant
Ingredient Facts
Peg-10 propylene glycol
AKA: Polyethylene Glycol 10 Propylene Glycol
Humectant · Humectant · EWG: 4
Synthetic
Humectant
Solvent
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha, alpha'-1,2-propanediylbis-, omega hydroxy (10 mol EO average molar ratio)
CAS #
9003-11-6
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 synthetic humectant derived from propylene glycol, which was first synthesized in the 1930s. Developed as a modern alternative to traditional glycerin for moisture-binding in skincare formulations.
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR