Castor Oil/IPDI Copolymer

AKA “Castor oil copolymer, IPDI castor oil polymer”

Synthetic

Ingredient Facts

Castor oil/ipdi copolymer

AKA: Castor oil copolymer, IPDI castor oil polymer

Synthetic · Emollient · EWG: 1

Plant-Derived Synthetic

Emollient

Occlusive

Skin Conditioner

Plant Oil

Synthetic

Clean

Castor oil creates a smooth, protective layer on skin and hair. Derived from castor seeds, this natural ingredient helps lock in moisture and provides a silky finish.

CAS #

68955-90-8, 2097847-57-7

Form

Oil

See origin →

Functions

Film Forming

Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.

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.

Anti-Inflammatory

Moisturizing

Locks in moisture to keep skin soft and supple throughout the day

Strengthens Barrier

Creates protective layer

Traditional Use

A modern synthetic polymer created in the late 20th century by combining castor oil with IPDI (isophorone diisocyanate) to develop film-forming and conditioning properties. Designed as a natural-derived alternative to purely synthetic polymers while maintaining cosmetic performance.