PPG-2 Butyl Ether
AKA “Polypropylene Glycol Butyl Ether, PPG-2 Butyl Ether
Skin Conditioning
Ingredient Facts
Ppg-2 butyl ether
AKA: Polypropylene Glycol Butyl Ether
Skin Conditioning · Hair Conditioning · EWG: 1
Synthetic
Solvent
Skin Conditioner
Hair Care
Clean
Polyoxypropylene (2) butyl ether
CAS #
9003-13-8
Form
Liquid
See origin →
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.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks in moisture
Traditional Use
Developed as a synthetic solvent and humectant in the mid-20th century. Created to improve spreadability and moisture retention in cosmetic formulations without natural precedent.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR