I spent 4 months reporting on the peptide BPC 157 and its unlikely journey from a research lab in post communist Croatia to today's MAHA movement. Ask me anything. : r IAmA Sources: U.S. Food and Drug Administration (FDA) Compounding and the FDA (503A & 503B guidance) FDA warning letters on unapproved peptide products National Institutes of Health (NIH) PubMed Is BPC 157 FDA approved? Latest News 2026 The Peptide Boom Is Getting Out of Hand The Atlantic of the Federal Food, Drug, and Cosmetic Act (FDCA).*