murphyCetyl Ricinoleate
AKA: 10401-55-5, Ricinoleic acid, Hexadecyl ester, JEECHEM CER, TEGOSOFT CR, CETINOL R, AEC CETYL RICINOLEATE
Synthetic
Emollient
Skin Conditioner
Clean
OriginDerived from castor oil through chemical modification of its ricinoleic acid component. Synthesized by esterifying ricinoleic acid with cetyl alcohol through catalytic processes.
9-Octadecenoic acid, 12-hydroxy-, hexadecyl ester [R-(Z)]-
Formula
C34H66O3
Mol. Weight
522.90
CAS #
10401-55-5
Form
Liquid
Skin Types
●all-skin-types, gentle
Best For
Dryness
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.
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-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed4 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 623)
Mixed Skin Irritation Results
3 studies / 1 mixed / 2 not irritating (CIR 353 and 623)
Concentration Guide
Leave-on0.3–15.2%
Rinse-off0.3%
0%50%100%
CIR reported use · 2012 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR