Polyglyceryl-10 Heptastearate

Plant-Derived

Skin Conditioner

Plant Oil

Not Clean

1,2,3-Propanetriol, homopolymer, octadecanoates (1:2) (10 mol glycerol average molar ratio)

CAS #

99126-54-2

Form

Liquid

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

Developed in the mid-20th century as a synthetic emulsifier combining polyglycerin with stearic acid. Used in cosmetics and personal care products to create stable emulsions and improve product consistency.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed1 review →

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

Verified Jun 2026

Data: CosIng · EWG · CIR