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 Compliance for Peptide Therapy and BPC 157 Holt Law FDA Is Expected to Lift Restriction on Peptides, Heeding RFK Jr.'s Wishes The New York Times Peptides are surging in popularity. There's little evidence that they work.