What are peptides? The treatments promising weight loss and better skin, explained Vox What Peptides Are Legal in the U.S.? Understanding FDA Approval, Compounding, and the Legal Gray Areas Holt Law The U.S. Food and Drug Administration is moving toward allowing compounding pharmacies to produce more than a dozen injectable peptides that were banned because of potentially significant safety risks, the New York Peptides take off as a DIY treatment but is that a good idea? : NPR