PEG-180
AKA “Polyethylene Glycol 180”
Synthetic
Ingredient Facts
PEG-180
AKA: Polyethylene Glycol 180
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Solvent
Skin Conditioner
Synthetic
Not Clean
A humectant that draws moisture into skin and helps dissolve other ingredients evenly throughout the formula for better texture and absorption.
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.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Moisturising
Locks In Moisture
Traditional Use
A modern polyethylene glycol polymer developed in the mid-20th century. Used as a humectant and solvent in cosmetics to replace traditional glycerin-based formulations with improved stability.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Decyl HDI/PEG-180 Crosspolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
Diethylene Glycol/DMAP Acrylamide/PEG-180/HDI Copolymer
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-180
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG-180M
European Commission
EU Cosmetic Ingredient Database (CosIng)
Verified Feb 2026
Data: CosIng · EWG · CIR