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PEG-45M
AKA “Polyethylene glycol 45M, macrogol 45M, PEG 45M”
Synthetic
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Ingredient Facts
PEG-45M
AKA: Polyethylene glycol 45M, Macrogol 45M, PEG 45M
Synthetic · Humectant | Viscosity Controlling | Skin Conditioning · EWG: 4
Plant-Derived
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
Plant-Derived
Synthetic. Derived from ethylene oxide, a petrochemical compound synthesized from petroleum hydrocarbons. Produced through polymerization of ethylene oxide monomers followed by controlled molecular weight adjustment.
Function
Humectant | Viscosity Controlling | Skin Conditioning
Benefits
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
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Regulatory Status
USA✔ permitted
CANADA✔ permitted
Regulatory Agencies
Verified Feb 2026
Data: CosIng · EWG · CIR