Categories: Emollient, Texture Enhancer, Polymer
Hydrogenated polyisobutene is a synthetic, relatively viscous 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.
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.
The independent Cosmetic Ingredient Review Board found hydrogenated polyisobutene is safe as used in cosmetics, where it is generally found in amounts of 4% or less.