Bioperine is a patented extract of Piper nigrum L. (black pepper) and/or Piper longum L. (long pepper) berries cultivated in India.
Bioperine appears to enhance the bioavailibility of certain supplements through enhanced absorption - ie making it easier for the body to absorb the needed vitamins, minerals, or other substances that it needs. It might be called a form of a supplement apsorption catalyst. For exactly this reason, bioperine is a thermogenic enhancer, enabling thermogenic substances to do their job more efficiently and quickly, and is thus found in a number of thermogenic weight-loss drugs.
Nonspecific Bioperine mechanisms promoting rapid absorption of nutrients