If you're asking yourself "What is BioPerine?" or "What are the benefits of BioPerine?" you've come to the right place for the answer! Swanson BioPerine Nutrient Absorption Enhancer is the one supplement that makes all others work better. BioPerine, a standardized black pepper extract (piper nigrum), is the only product from piperine to obtain a patented status for its ability to increase the bioavailability of nutritional compounds. It is also the only source from piperine to have undergone clinical studies in the U.S. to substantiate its safety and effectiveness.