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Researched by Helena DeMaria-Williams

Formula IngredientFilm Former

Castor Oil/IPDI Copolymer

INCI: Castor Oil/IPDI Copolymer

Castor oil/IPDI copolymer is a synthetic polymer derived from castor oil and isophorone diisocyanate (IPDI). It functions primarily as a film-forming and oil-thickening agent, creating clear oily gels and helping to suspend particles such as pigments, glitters, and mineral UV filters in oil-based formulations. It is commonly used in premium cosmetic products.

Category

Film Former

Irritation Risk

Low

Skin Types

all skin types, dry, normal

What does this do in a formula?

oil thickening, film forming, particle suspension, clear gel formation, texture enhancement

Is Castor Oil/IPDI Copolymer safe? Key considerations

Can Castor Oil/IPDI Copolymer cause irritation?

Low Risk

Generally well tolerated at typical cosmetic concentrations. No known irritation concerns. No EU Annex II or III restrictions.

Does Castor Oil/IPDI Copolymer increase sun sensitivity?

No Risk

Does not increase photosensitivity.

Is Castor Oil/IPDI Copolymer safe during pregnancy?

Safe

No reproductive or developmental concerns. Polymeric ingredient that does not penetrate the skin.

How does Castor Oil/IPDI Copolymer work?

Castor oil/IPDI copolymer is a synthetic polymer derived from castor oil and isophorone diisocyanate (IPDI). It functions primarily as a film-forming and oil-thickening agent, creating clear oily gels and helping to suspend particles such as pigments, glitters, and mineral UV filters in oil-based formulations. It is commonly used in premium cosmetic products.

Which products contain Castor Oil/IPDI Copolymer?

Shop products that contain Castor Oil/IPDI Copolymer