Deep Dive: Regulatory Status of Popular Compounded Peptides Holt Law 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 A Note on Peptides by Shantanu Out of Singapore Think twice before injecting peptides bought online: unauthorized products can seriously harm you Canada.ca FDA takes first step in possible reversal of ban on some peptides The Washington Post