Back to Ingredient Dictionary

BIS-HEMA POLY(1,4-BUTANEDIOL)-13/1,4-BUTANEDIOL/IPDI COPOLYMER

Description

BIS-HEMA POLY(1,4-BUTANEDIOL)-13/1,4-BUTANEDIOL/IPDI COPOLYMER is a complex synthetic polymer used in various skincare and cosmetic formulations. This ingredient functions primarily as a film-forming agent and viscosity controller. Its unique chemical structure, combining bis-hydroxyethyl methacrylate (BIS-HEMA) with polybutylene glycol and isophorone diisocyanate (IPDI), provides specific benefits in product formulation.

The copolymer creates a flexible, breathable film on the skin's surface, which can help to lock in moisture and protect against environmental stressors. Its film-forming properties also contribute to the smooth application and even distribution of active ingredients in skincare products. As a viscosity controller, it helps stabilize emulsions and suspensions, ensuring consistent product texture and performance.

This ingredient is particularly useful in long-wear cosmetics, such as foundations and mascaras, where it enhances product adherence and durability. In skincare, it can be found in moisturizers, serums, and sunscreens, where it may improve product efficacy by creating a uniform layer on the skin. While generally considered safe for topical use, individuals with sensitive skin should perform patch tests before regular application of products containing this copolymer.