PEG-25M
AKA “Polyethylene Glycol 25M, PEG 25M”
Synthetic
Ingredient Facts
PEG-25M
AKA: Polyethylene Glycol 25M, PEG 25M
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Occlusive
Synthetic
Clean
Helps skin and hair absorb and retain moisture, keeping them hydrated and soft throughout the day.
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.
Viscosity Controlling
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Locks In Moisture
Traditional Use
A high molecular weight polyethylene glycol polymer developed in the mid-20th century for industrial and cosmetic applications. Used as a humectant and thickening agent without a significant traditional use history.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR