BPC-157
BPC-157 (Body Protection Compound-157) is a synthetic peptide consisting of 15 amino acids derived from a protective protein found in human gastric juice. It was first isolated by researchers studying the mechanisms behind the stomach's remarkable ability to heal itself despite constant exposure to hydrochloric acid and digestive enzymes. Animal studies have demonstrated accelerated healing of tendons, ligaments, muscles, nerves, and the gastrointestinal tract. The proposed mechanisms include upregulation of growth hormone receptors, promotion of angiogenesis (new blood vessel formation), modulation of the nitric oxide system, and interaction with the FAK-paxillin pathway involved in tissue repair. Despite promising preclinical data, human clinical trials remain limited. Most evidence comes from rodent models, and the peptide's regulatory status varies by country. It is not FDA-approved for any medical condition. Users in the biohacking and athletic recovery communities report benefits for joint injuries, gut healing, and tendon repair, but these remain anecdotal.