The peptide regulatory landscape in 2026 is in active flux. After the FDA placed 19 popular peptides in Category 2 in late 2023, HHS Secretary RFK Jr. announced in February 2026 that Injectable GHK Cu: Beginner's Guide to Copper Peptide Peptide Injections: What They Are, What They Promise, and the Big Unknowns GHK CU Apollo Peptide Sciences 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