Castor Oil/ Ipdi Copolymer
AKA “Castor oil copolymer, Castor-IPDI polymer”
Carrier Oil
Ingredient Facts
Castor oil/ ipdi copolymer
AKA: Castor oil copolymer, Castor-IPDI polymer
Carrier Oil · Emollient · EWG: 1
Plant-Derived
Emollient
Skin Conditioner
Plant Oil
Clean
Castor Oil/ Ipdi Copolymer is a cosmetic ingredient. Rated low hazard by EWG.
Family
Euphorbiaceae (Spurge family)
Plant Part
Seed
CAS #
68955-90-8
Form
Oil
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Film Forming
Anti-Inflammatory
Moisturizing
Strengthens Barrier
Creates protective layer
Traditional Use
A modern synthetic material combining castor oil with industrial polyisocyanate chemistry, developed for cosmetics in the late 20th century as a conditioning and film-forming agent.
Skin Types
●all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Verified Jun 2026
Data: CosIng · EWG · CIR