Hydrogenated Polyisobutene

Hydrogenated Polyisobutene Description

Hydrogenated polyisobutene is a synthetic emollient with research backing its ability to provide long-lasting moisture retention. It acts as a lubricant on skin’s surface, providing a soft, smooth feel. It is available as a slightly viscous liquid or thick gel.

In some formulas, hydrogenated polyisobutene is used as a substitute for mineral oil or silicones because of its similar action to help maintain skin’s moisture barrier and improve the feel of skin care products. It is a popular material for use in lip treatments because of its feel and emolliency on lips.

The independent Cosmetic Ingredient Review Board found hydrogenated polyisobutene is safe and did not specify a limit on its use. It is used in concentrations as high as 80% in some cosmetic and skin care formulations.