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 The FDA has issued clear signals on BPC 157: it is not approved for human use in any form due to potential significant safety risks. This critical classification profoundly impacts research and Buy BPC 157 Peptide 99% Pure Peptide Works BPC 157: Miracle Healing Peptide or Hidden Danger? RFK Jr. and the Perils of Peptides Washington Monthly