Gray Market Peptides: So Much Hype, So Little Data The FDA just put peptides like BPC 157, TB 500, and KPV on the clock. , As a compounding pharmacist, this is literally my world and most people dont understand the regulatory nuance behind what RFK Jr.'s peptide push could unleash risky drugs STAT First Opinion FDA Targets GLP 1 and Peptide Compounding, Advertising and 'Research Use Only' Labeling