Polyglyceryl-2 Sesquioleate

Synthetic

Cleanser

Emulsifier

Clean

1,2,3-Propanetriol, homopolymer, 9-(Z)-octadecenoates (2:3) (2 mol glycerol average molar ratio)

CAS #

-

Functions

Emulsifying

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Emulsifier

Antioxidant Protection

UV Protection

Mixes Oil & Water

Traditional Use

A synthetic emulsifier combining polyglycerin with oleic acid (from plant oils like olive and sunflower). Formulated in the 20th century as a gentle, plant-derived alternative to traditional emulsifiers.

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-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

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

Plump + Juicy Cleansing Oil

Kosas

→

Nourishing Oil Cleanser

Verified Jun 2026

Data: CosIng · EWG · CIR