Castor Oil Phosphate

Castor Oil Phosphate 1
photograph
AKA: Phosphated Castor Oil
Plant-Derived
Emulsifier
Plant Oil
Clean
OriginDerived from castor oil (Ricinus communis seeds) and phosphoric acid through esterification. Produced by chemically bonding phosphoric acid groups to castor oil fatty acids via esterification reaction.
Castor Oil Phosphate is a complex mixture of esters of Ricinus Communis (Castor) Oil and phosphoric acid
Family
Euphorbiaceae (Spurge family)
Plant Part
Seed
CAS #
84929-62-4
Form
Oil
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Anticaking
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Anti-Inflammatory
Moisturizing
Strengthens Barrier
Prevents clumping
Keeps product blended
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · 2013 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR