Decyl Castorate
AKA “Decyl Castor Oil Ester, Castor Oil Derivative”
Emollient
Ingredient Facts
Decyl castorate
AKA: Decyl Castor Oil Ester, Castor Oil Derivative
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Emulsifier
Skin Conditioner
Plant Oil
Not Clean
Decyl Castorate is the ester of Decyl Alcohol and the fatty acids derived from Ricinus Communis Oil
Form
Oil
See origin →
Functions
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
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
Traditional Use
Synthesized in modern times as an ester of decyl alcohol and castor oil components. Used in cosmetics for conditioning properties, derived from traditional castor oil but in synthetic ester form.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR