INCI · emollient · CIR review pending · used in 8 products
Hydrogenated Polyisobutene
Hydrogenated Polyisobutene is a synthetic liquid oil derived from isobutylene (propene, 2-methyl-, homopolymer; CAS# 40921-86-6 / 61693-08-1). It is available in different grades depending on molecular weight, ranging from very light and volatile to more substantial formulations. It is used as an emollient, skin conditioning agent, and viscosity controller in cosmetic formulas, functioning as an alternative to mineral oil or silicone oils.
Evidence level
moderateEWG score
—Comedogenic
1/5Category
emollient● Benefits
Leaves skin soft and smooth through its emollient action. Also serves as a waterproofing agent in sunscreens and makeup products, and acts as a shine enhancer in lip gloss formulas.
hydratingbarrier-supportemollient
● Cautions
