INCI · other · CIR review pending · used in 1 products
Polyisoprene
Polyisoprene (CAS# 9003-31-0) is a homopolymer of 2-methyl-1,3-butadiene, a synthetic rubber-like polymer. According to the official CosIng database, its recognized function in cosmetics is viscosity controlling. It appears across a range of product types including pimple patches, creams, and color cosmetics.
Evidence level
weakEWG score
—Comedogenic
—Category
other● Benefits
Polyisoprene is used primarily as a viscosity-controlling agent in cosmetic formulations. The source does not describe additional skin benefits beyond this functional role.
viscosity-controlling
● Cautions
