What is it?
Bioperine is a branded extract of black pepper and is 95% piperine. Black Pepper is a source of piperine, a molecule that does not do much on its own but can inhibit enzymes that would attack other molecules. Due to this, it is ingested alongside some supplements to increase their absorption rates.

What does it do?
It can enhance the absorption or bioavailability of certain compounds, such as curcumin from turmeric.