The trend of unproven peptides is spreading through influencers and RFK Jr. allies CNN Q&A: Should you trust trending peptide injections? 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 BPC 157: Miracle Healing Peptide or Hidden Danger? Peptides are surging in popularity. There's little evidence that they work.