Hair Growth Serum Intense with Copper Peptide GHK Cu Copper Peptide (GHK Cu) 2% Recovery Serum 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 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