Peptides take off as a DIY treatment but is that a good idea? : NPR 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, The peptide problem: Hype is outrunning the evidence FDA's Overreach on Compounded Peptides BPC 157: Experimental Peptide Creates Risk for Athletes