Some peptides are FDA approved drugs. Some are legal supplements. Some are neither. The same word, peptide, covers all three categories. The regulatory status of the specific compound is what determines legality. Is BPC 157 Banned? Oral vs. Injectable Forms Explained Patients Using Wellness Peptides Have No Reliable Information About Whether They Are Safe or Effective, ECRI and ISMP Warn 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 FDA Moves to Reevaluate Several Peptides American Med Spa Association