More oversight needed of unapproved medicines that threaten patients' health PhRMA A closer look at the unapproved peptide injections promoted by influencers and celebrities king5.com FDA takes first step in possible reversal of ban on some peptides The Washington Post 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 trend of unproven peptides is spreading through influencers and RFK Jr. allies CNN