Cetearyl Phosphate

AKA: 90506-73-3, BOTANIMULSE CSP, EMPIPHOS TM, CETEARYL PHOSPHATE [INCI], PHOSPHORIC ACID, MONO-AND DI-C16-18-ALKYL ESTERS

Plant-Derived

Skin Conditioner

Plant Oil

Clean

Phosphoric Acid, Mono- and Di-C16-18-Alkyl Esters

Formula

C34H71O8P

Mol. Weight

638.90

CAS #

90506-73-3

Form

Powder

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

A synthetic phosphate ester combining cetyl and stearyl alcohols with phosphoric acid. Created as an emulsifier and conditioning agent in modern cosmetic formulations.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

ewg-1

medical-approval

pregnancy-nursing-safe

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, gentle

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.

Verified Jun 2026

Data: PubChem · CosIng · EWG · CIR