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 Orthopedic Use of BPC 157 Sports Med Review Injectable Peptides: Out of the Back Alley and Into the Light? Berkley Lifesciences Sources: U.S. Food and Drug Administration (FDA) Compounding and the FDA (503A & 503B guidance) FDA warning letters on unapproved peptide products National Institutes of Health (NIH) PubMed Is BPC 157 Legal? Understanding Its Status and Implications FDA Targets GLP 1 and Peptide Compounding, Advertising and 'Research Use Only' Labeling