What Is BPC 157? A Medical Clinic's Guide to the Body Protective Peptide, Its Uses, and What It Actually Does Perfect B BPC 157 has already hit the mainstream, but should it hit your bloodstream? The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York NFL and NFLPA inform players of addition to banned substance list: BPC 157, an experimental peptide not approved for use by humans that has been found in supplements and recovery treatments.