This ingredient is a polymer derived from castor oil and isophorone diisocyanate (IPDI). It acts as a film-forming agent, creating a flexible and often water-resistant layer on the skin. It also provides emollient properties, helping to soften and smooth the skin's surface. This copolymer can improve product adhesion and wear time.
Rated by SpottyLabs' ingredient methodology, independent of brands.
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