INCI · emollient · CIR review pending · used in 2 products
Isoeicosane
Isoeicosane is a synthetic hydrocarbon derived from polymerized isobutylene (pentaisobutylene fraction, hydrogenated), classified under CAS # 93685-79-1. It is a 1,3-butadiene-free polymer belonging to the C4 hydrocarbon family. It functions primarily as an emollient, skin conditioning agent, and solvent in cosmetic formulations. It is found across a wide range of products including lip balms, foundations, sunscreens, and serums.
Evidence level
weakEWG score
—Comedogenic
—Category
emollient● Benefits
As an emollient, isoeicosane helps soften and smooth the skin by forming a conditioning layer on the surface. It also serves as a skin conditioning agent, contributing to a pleasant texture and feel in formulations. Its solvent properties aid in dissolving and blending other cosmetic ingredients.
hydratingbarrier-support
● Cautions
