The Peptide Craze Part 2: BPC 157, NAD and the Truth Behind the Longevity Molecule Hype Injectable Peptides: Out of the Back Alley and Into the Light? Berkley Lifesciences 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 FDA Peptide Update: Category 2 Removals Explained Is BPC 157 Banned? Oral vs. Injectable Forms Explained New: An FDA decision to place 19 peptides on the unsafe list was supported by numerous documented safety concerns, former officials said. Even though demand for peptide therapies has exploded since then,