I Reviewed Over 100 Peptide StudiesThese 4 Findings Stood Out the Most Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance[v3] Preprints.org From toxicity assessment to adaptive safety care: implementing comprehensive fast track safety evaluation for anticancer drug development ESMO Open Not all peptides are restricted. Here's the breakdown you actually need. The FDA's Category 2 classification affects specific compounded peptides BPC 157, TB 500, CJC 1295 Ipamorelin, AOD 9604, Epithalon, Selank, Semax. Others like Sermorelin