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PPG-15
AKA “Polypropylene Glycol 15”
Skin Conditioning
Ingredient Facts
PPG-15
AKA: Polypropylene Glycol 15
Skin Conditioning · Skin Conditioning · EWG: 1
Synthetic
Skin Conditioner
Clean
Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy- (15 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 in the mid-20th century as a cosmetic humectant and solvent. Part of modern synthetic chemistry with no traditional use history.
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
PPG-11 and PPG-15 Stearyl Ether.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2023
→
PPG-11 and PPG-15 Stearyl Ether.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2023
→
PPG-11 and PPG-15 Stearyl Ether.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2023
→
PPG-11 and PPG-15 Stearyl Ether.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2023
→
Final Report on the Safety Assessment of PPG-11 and PPG-15 Stearyl Ethers
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
PPG-11 and PPG-15 Stearyl Ethers
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
Bis-PEG/PPG-15/5 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cetyl PEG/PPG-15/15 Butyl Ether Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG/PPG-15/15 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PEG/PPG-15/5 Dimethicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PPG-15
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PPG-15 Butyl Ether
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PPG-15 Stearyl Ether
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
PPG-15-Buteth-20
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Cetyl PEG/PPG-15/15 Butyl Ether Dimethicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PPG-15
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PPG-15 Stearyl Ether
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
PPG-15-Buteth-20
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Final report on the safety assessment of PPG-11 and PPG-15 stearyl ethers.
Lanigan RS, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2001
→
Final report on the safety assessment of PPG-11 and PPG-15 stearyl ethers.
Lanigan RS, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2001
→
Final report on the safety assessment of PPG-11 and PPG-15 stearyl ethers.
Lanigan RS, Cosmetic Ingredient Review Expert Panel
International journal of toxicology, 2001
→
Verified Jun 2026
Data: CosIng · EWG · CIR