FDA to weigh easing limits on unproven peptides favored by RFK Jr. and other MAHA figures FDA to Consider Lifting Restrictions on Numerous Compounded Peptides Foley & Lardner Is BPC 157 Banned? Oral vs. Injectable Forms Explained NDI warning letters fuel criticism of FDA enforcement approach On August 15 2025, the U.S. Food & Drug Administration (FDA) issued a Warning Letter to Platinum Biologics LLC for marketing umbilicalcordderived products including exosome products (NanoEx & Nano Xsomes) without approval. As unregulated peptides grow in popularity, doctors warn of unknown risks ABC30 Fresno