Compounded "semaglutide" is not FDA approved semaglutide.com 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. Is BPC 157 Legal? Understanding Its Status and Implications FDA Targets GLP 1 and Peptide Compounding, Advertising and 'Research Use Only' Labeling BPC 157: Miracle Healing Peptide or Hidden Danger?