PPG-38-Buteth-37
AKA “
Polypropylene Glycol 38 Buteth-37
”
Surfactant
🦆
❤️
👻
Ingredient Facts
PPG-38-Buteth-37
AKA: Polypropylene Glycol 38 Buteth-37
Surfactant · Cleansing · EWG: 1
WHAT IS IT?
Synthetic
Cleanser
Skin Conditioner
Hair Care
Clean
Oxirane, methyl-, polymer with oxirane, monobutyl ether
CAS #
9038-95-3
Form
Liquid
See origin →
WHAT'S IT DO?
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Locks in moisture
Traditional Use
Modern synthetic emulsifier and surfactant created to stabilize and improve texture in cosmetic products.
Skin Types
●
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
IS IT SAFE?
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA
✔ permitted
EU
⚠ restricted
JAPAN
⚠ restricted
CANADA
⚠ restricted
Regulatory Agencies
EWG
CIR
FDA
EU COSING
Health Canada
WHAT'S THE PROOF?
PPG-38-Buteth-37
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PPG-38-Buteth-37
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Verified Jun 2026
Data: CosIng · EWG · CIR