FDA to weigh easing limits on unproven peptides BPC 157 and the Difference Between an Evidence Gap and a Cover Up: What the entire human evidence base actually looks like, and the questions to ask next. WellFounded Founders Health & Warning: BPC 157 is a synthetic peptide and an unapproved drug, often promoted with misleading claims. It is prohibited and on the DoD Prohibited Dietary Supplement Ingredients List. Don't gamble with your 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. Why Are People Injecting Themselves with Peptides? The New Yorker Is BPC 157 Legal? Understanding Its Status and Implications