BPC 157 for athletes and injury treatment: Science, safety, and legal concerns In 2023, the FDA deemed 19 peptides too unsafe to be dispensed by compounding pharmacies. Now, under RFK Jr., the agency is poised to reverse itself despite the fact that few RFK Jr. forces FDA to reconsider 12 unproven peptides after 2023 ban Ars Technica RFK Jr. promotes peptides. Now the FDA weighs easing limits on the unproven chemicals New: An FDA decision to place 19 peptides on the unsafe list was supported by numerous documented safety concerns, former officials said. Even though demand for peptide therapies has exploded since then, FDA to review broader access to restricted peptides in July