FDA to weigh easing limits on unproven peptides promoted by RFK Jr. Unauthorized injectable peptide drugs seized and sold by Canada Peptide may pose serious health risks Canada.ca 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 What are peptides? The treatments promising weight loss and better skin, explained Vox 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