Snapshot
- Overview
- A castor-oil film-former that helps makeup wear longer.
- Category
- Tone/Texture, Skin Conditioning
- Type
- Film Former
Castor Oil/IPDI Copolymer
Castor Oil/IPDI Copolymer is a film-forming polymer made by reacting castor oil-derived components with isophorone diisocyanate. It's used in cosmetics to lay down flexible, uniform films that boost wear, reduce transfer, and improve smooth application.
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Our take
Is Castor Oil/IPDI Copolymer a Good Ingredient?
It reliably improves wear and transfer resistance as a stable, inert film-former with typically low irritation potential, which earns it a Good rating; the benefits are performance-focused rather than treatment-oriented, but consistency across formulations supports the rating.
What it does
Skin Benefits
Improves wear time and reduces smudging or transfer while giving a smoother glide during application, and helps products stay even and intact through the day.
Where you'll find it
Uses in Skincare & Cosmetics
Common in long-wear makeup such as mascaras, eyeliners, lipsticks, and transfer-resistant foundations, as well as in water-resistant sunscreens and tinted moisturizers.
Before you use it
Safety
Low likelihood of irritation or sensitization at typical cosmetic levels. Suitable for use around the eyes when formulated appropriately; avoid use on broken or very irritated skin.
Products with Castor Oil/IPDI Copolymer
