PPG-17
AKA “Polypropylene Glycol 17”
Skin Conditioning
Ingredient Facts
PPG-17
AKA: Polypropylene Glycol 17
Skin Conditioning · Skin Conditioning · EWG: 1
Synthetic
Skin Conditioner
Clean
Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy- (17 mol PO average molar ratio)
CAS #
25322-69-4
Form
Liquid
See origin →
Functions
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
A polypropylene glycol polymer developed as a modern cosmetic humectant and solvent. No traditional or historical use exists for this synthetic ingredient.
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
PEG/PPG-17/18 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG/PPG-17/4 Dimethyl Ether
European Commission
EU Cosmetic Ingredient Database (CosIng)
PPG-17
European Commission
EU Cosmetic Ingredient Database (CosIng)
PPG-17 Butyl Ether
European Commission
EU Cosmetic Ingredient Database (CosIng)
PPG-17-Buteth-17
European Commission
EU Cosmetic Ingredient Database (CosIng)
PEG/PPG-17/18 Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
PEG/PPG-17/4 Dimethyl Ether
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
PPG-17
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: CosIng · EWG · CIR