Polyisobutene is a general name for a wide range of aliphatic branched-chain polymeric hydrocarbons C56 – C856. It is a clear, colorless, odorless, viscous liquid with a good safety profile.
Polyisobutene is used in sun and skin care applications to create a protective moisture barrier and impart a vibrant, emollient feel to the skin. It is compatible with lower viscosities and resists isoparaffins, while in combination with them, it provides a luxurious feel and allows for viscosity control.
Used in lip products, Polyisobutene improves wear and imparts a sheen. It has excellent spreading properties and can be combined with other aliphatic branched chain hydrocarbons and other ingredients to customize desired properties.
Polyisobutene is highly occlusive, providing barrier properties with long-lasting wear. It exhibits interesting properties and is compatible with other ingredients (silicones and many other cosmetic fluids), making it ideal for use in a wide variety of cosmetic and personal care applications.Functions
Emollient
Binder
Film-forming agent
Viscosity controlling agent
CAS Number(s)
9003-27-4
INCI name
Polyisobutene
Synonyms
Isooctahexacontane
Isohexapentacontahexane
Isopentacontaoctactane
Related ingredients
Isododecane is a synthetic aliphatic hydrocarbon with a branched structure. It is a safe, non-irritating, and non-comedogenic cosmetic-grade solvent and emollient with low viscosity, good volatility, spreadability, and drying time.
Isoeicosane is a clear, color- and odorless liquid hydrocarbon with low viscosity and good spreadability. It is used as a conditioner in hair care and as a lipophilic, low-viscosity carrier in skin and sun care.
Isohexadecane is a clear, colorless, and odorless liquid with a slight volatility. It is used in skin and sun care products to leave a silky, light-emollient feeling on the skin. It is dermatologically safe, non-comedogenic, and non-greasy.
Isooctane is a colorless liquid with low odor intensity. It is volatile and evaporates rapidly.