PPG-17

AKA: Polypropylene Glycol 17

Synthetic

Skin Conditioner

Clean

OriginDerived from propylene glycol, a petroleum-based synthetic compound in the polyol chemical family. Synthesized through polymerization of propylene oxide with propylene glycol as the base polymer.

Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-hydro-.omega.-hydroxy- (17 mol PO average molar ratio)

CAS #

25322-69-4

Form

Liquid

Skin Types

●all-skin-types

Best For

Dehydration

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

CIR

Safe as used

Pregnancy

Yes

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR