How different peptide therapies may affect your body Prenuvo blog 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, Thousands of Sites, Less Than 100 Investigators: New Authorities Help FDA Maintain Oversight of Clinical Research FDA Q&A: Should you trust trending peptide injections? The peptide problem: Hype is outrunning the evidence