The Peptide Craze Part 2: BPC 157, NAD and the Truth Behind the Longevity Molecule Hype The FDA scheduled a hearing on peptides and the implications could be significant for prescribers and FDA issued its first warning letter to a dispenser (a medical spa) for violating the Drug Supply Chain Security Act (DSCSA), including failing to source products from authorized trading partners and Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives