PPG-11 Stearyl Ether

AKA: Stearyl Polypropylene Glycol

Plant-Derived

Emollient

Skin Conditioner

Clean

OriginDerived from stearyl alcohol and propylene glycol, both petroleum-derived synthetic compounds. Synthesized through etherification reaction between stearyl alcohol and polypropylene glycol.

Poly[oxy(methyl-1,2-ethanediyl)], .alpha.-octadecyl-.omega.-hydroxy-

CAS #

25231-21-4

Form

Liquid

Skin Types

●all-skin-types

Best For

Dryness

Pregnancy & Breastfeeding Safe

Yes

Functions

Emollient

Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.

Locks In Moisture

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed3 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

Leave-on2.5–5%

Rinse-off2%

0%50%100%

CIR reported use · 2022 survey

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