murphyZinc Ricinoleate
AKA: Zinc diricinoleate, 13040-19-2, KOSMOS 54, TEGO SORB A 30, 9-Octadecenoic acid, Zinc salt (2:1), TEGO SORB PY 88 TQ
Synthetic
Clean
OriginDerived from ricinoleic acid (a fatty acid from castor oil) and zinc salts as starting materials. Synthesized through the reaction of ricinoleic acid with zinc compounds to form the zinc salt ester.
Zinc diricinoleate
Formula
C36H66O6Zn
Mol. Weight
660.30
CAS #
13040-19-2
Form
Powder
Skin Types
●all-skin-types
Best For
Acne
Pregnancy & Breastfeeding Safe
Yes
Functions
Anticaking
Deodorant
Opacifying
Prevents Clumping
Controls Odor
Adds Opacity
Neutralizes odor
Creates creamy opacity
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 an Eye Irritant
1 study / 1 not irritating (CIR 755)
Not a Sensitizer
1 study / 1 not sensitizing / plus 1 case report (CIR 353 and 755)
Mixed Skin Irritation Results
2 studies / 1 irritating / 1 not irritating (CIR 755)
Concentration Guide
Leave-on0.15–2.3%
Rinse-offNot reported
0%50%100%
CIR reported use · 2016 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR