PPG-40 Butyl Ether
AKA “Polypropylene Glycol-40 Butyl Ether, PPG Butyl Ether”
Synthetic
Ingredient Facts
Ppg-40 butyl ether
AKA: Polypropylene Glycol-40 Butyl Ether, PPG Butyl Ether
Synthetic · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Synthetic
Clean
A lightweight conditioning agent that helps soften and smooth both hair and skin, leaving them feeling hydrated and silky.
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.
Locks in moisture
Traditional Use
Synthetic humectant and solvent developed in the cosmetics industry. Used to improve product stability, moisture retention, and texture in skincare formulations.
Skin Types
●all-skin-types
Best For
General
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Amended Final Report on the Safety Assessment of PPG-40 Butyl Ether with an Addendum to Include PPG-2, -4, -5, -9, -12, -14, -15, -16, -17, -18, -20, -22, -24, -26, -30, -33, -52, and -53 Butyl Ether
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of PPG-40 Butyl Ether
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Verified Feb 2026
Data: CosIng · EWG · CIR