Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance[v3] Preprints.org Sermorelin vs Ipamorelin: Differences, Benefits, and Which Is Better? 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, Why Men Should Only Take FDA Approved Peptides: The Importance of Safety and Efficacy FDA Peptide Reclassification 2026: What Researchers Want