BPC 157 BPC 157 is a pentadecapeptide composed of a string of 15 amino acids which occurs naturally in human gastric juice. What is BPC 157? Everything to know about this peptide What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B The Stable Gastric Pentadecapeptide BPC 157 Pleiotropic Beneficial Activity and Its Possible Relations with Neurotransmitter Activity BPC 157 Explained: What We Know And What We Dont, BPC 157 (Body Protection Compound 157) is a 15amino acid peptide derived from a protein found in gastric juice. Preclinical research suggests BPC 157 for athletes and injury treatment: Science, safety, and legal concerns