Castor isostearate beeswax succinate
AKA “Castor Isostearate Beeswax Succinate, Castor Oil Derivative”
Synthetic
Ingredient Facts
Castor isostearate beeswax succinate
AKA: Castor Oil Derivative
Synthetic · Emollient · EWG: 1
Plant-Derived
Emollient
Occlusive
Skin Conditioner
Bee Product
Plant Oil
Synthetic
Clean
A natural conditioning agent derived from castor seed oil and beeswax that softens and smooths skin while helping products glide on evenly.
Family
Euphorbiaceae (Spurge family)
Plant Part
Seed
Form
Wax
See origin →
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.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Locks in moisture
Traditional Use
This is a modern synthetic ester developed in the 20th century as an emulsifying and conditioning agent for cosmetics. It combines natural components (castor oil and beeswax) with synthetic modification to improve stability and texture in skincare formulations.
Skin Types
●all-skin-types, gentle
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR