PEG-45M
AKA “Polyethylene glycol 45M, macrogol 45M, PEG 45M”
Synthetic
Ingredient Facts
PEG-45M
AKA: Polyethylene glycol 45M, Macrogol 45M, PEG 45M
Synthetic · Humectant · EWG: 4
Synthetic
Humectant
Skin Conditioner
Synthetic
Not Clean
A humectant that draws moisture into skin and hair, helping products feel hydrated and smooth.
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
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks In Moisture
Traditional Use
A very high-molecular-weight polyethylene glycol developed for industrial and cosmetic applications. Used as a thickener and texture modifier in modern skincare and cosmetic formulations.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR