Glycereth-8
molecular structure · PubChem
AKA: Glycereth-3, 21156-05-8, BLAUNON GL-3, PEG-3 GLYCERYL ETHER, ETHANOL, GLYCERETH-3 [INCI]
Synthetic
Humectant
Emollient
Skin Conditioner
Not Clean
Glycereth-8 is the polyethylene glycol ether of Glycerin with an average ethoxylation value of 8
Formula
C9H20O6
Mol. Weight
224.25
CAS #
31694-55-0
Form
Powder
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Viscosity Controlling
Locks In Moisture
Traditional Use
A synthetic glycerin ethoxylate developed in the 20th century for use as an emulsifier and hydrating agent in cosmetics. Part of the modern synthetic emulsifier category without historical precedent.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR