The trend of unproven peptides is spreading through influencers and RFK Jr. allies CNN Most people hear not FDA approved and immediately think unsafe or ineffective but the reality is a lot more about economics than science. If something can't be patented, there's little incentive to 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 Moves to Reevaluate Several Peptides American Med Spa Association