Polybutene Good Texture enhancer Hydration Polybutene at a glance Synthetic polymer with a thick, viscous texture Has emollient properties for skin and lips Contributes to long wear of lip glosses + balms Considered safe as used in cosmetics Polybutene description Polybutene is a clear, colourless synthetic liquid polymer that works as a binding, glossing, and thickening agent in cosmetics. Its large size makes it impossible to penetrate past skin’s uppermost layers. Related ingredients: Hydrogenated Polyisobutene Hydrogenated Polybutene