PEG-800
AKA “Polyethylene Glycol 800, PEG 800”
Humectant
Ingredient Facts
PEG-800
AKA: Polyethylene Glycol 800, PEG 800
Humectant · Humectant · EWG: 4
Synthetic
Humectant
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-hydro-.omega.-hydroxy- (800 mol EO average molar ratio)
CAS #
25322-68-3
Form
Liquid
See origin →
Functions
Anticaking
Binding
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Plasticiser
Viscosity Controlling
Locks In Moisture
Traditional Use
A polyethylene glycol polymer developed in the 20th century as a synthetic humectant and solvent. Used in modern skincare formulations to draw moisture into the skin and dissolve various cosmetic ingredients.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR