RFK Jr. promotes peptides. Now the FDA weighs easing limits on the unproven chemicals BPC 157 has already hit the mainstream, but should it hit your bloodstream? Everything You Need to Know About the FDA Peptide Ban How did BPC 157 become the wellness industry's star peptide? In the era of Make America Healthy Again, the popularity of peptidesshort chains of amino acids that often act as signalling molecules in the bodyhas risen sharply. Many compounding pharmacies, which produce Peptide BPC 157 Does It Work? Breaking Down the Evidence and the Hype