Some peptides are FDA approved drugs. Some are legal supplements. Some are neither. The same word, peptide, covers all three categories. The regulatory status of the specific compound is what determines legality. ASCIA Guidelines Adrenaline (Epinephrine) Device Prescription Australasian Society of Clinical Immunology and Allergy (ASCIA) The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York Ipamorelin Peptide Dosing Guide: Timing, Protocol & Side Effects (2026) Rescheduling psilocybin and MDMA in Australia A process explainer