murphyPPG-9
molecular structure · PubChem
AKA: Polypropylene Glycol 9, Propylene Glycol Polymer
Synthetic
Skin Conditioner
Clean
OriginPPG-9 belongs to the polypropylene glycol chemical family, synthesized from propylene oxide. It is produced through polymerization of propylene oxide monomers via catalytic addition reactions.
Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy- (9 mol PO average molar ratio)
CAS #
25322-69-4
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed4 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Restricted By
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR