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 How does the Peptide BPC 157 Work? FDA to weigh easing limits on unproven peptides promoted by RFK Jr. How Long Does BPC 157 Take to Work? Timeline and Guide Peptides may soon be easier to get amid RFK Jr.'s push, but experts warn of risks