Styrene/Butadiene Copolymer Good Occlusive-opacifying agent No known benefits Styrene/Butadiene Copolymer at a glance Synthetic polymer Has elastic and viscous properties Can be used in making hydrocolloid bandages Ruled safe as used in cosmetics Styrene/Butadiene Copolymer description Styrene/butadiene copolymer, also known as butadiene-styrene rubber, is a type of synthetic polymer known as an elastomer, meaning it has elastic and viscous properties. In cosmetics, it is used as a texture enhancer and opacifying agent. It is also one of several types of polymers that can be used to make hydrocolloid bandages. The independent Cosmetic Ingredient Review has ruled styrene/butadiene copolymer safe in its current usage in cosmetics. Related ingredients: Hydrocolloid