PEG-135
AKA “Polyethylene Glycol 135”
Synthetic
Ingredient Facts
PEG-135
AKA: Polyethylene Glycol 135
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Solvent
Skin Conditioner
Synthetic
Not Clean
A lightweight humectant that helps skin absorb and retain moisture, while also helping dissolve and blend other ingredients smoothly in the formula.
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 high-molecular-weight polyethylene glycol developed in the mid-20th century for pharmaceutical and cosmetic use. Used as a humectant and thickening agent in modern skincare products.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR