What Peptides Are Legal in the U.S.? Understanding FDA Approval, Compounding, and the Legal Gray Areas The FDA reclassified the peptide CJC Ipamorelin so most compounding pharmacies can no longer produce it. While some pharmacies may choose not to comply with the new regulations, we avoid using those 2026 FDA Peptide Reclassification Purefico Medspa and Therapy GHK Cu, BPC 157, TB 500, KPV Injectable Peptide