BPC 157 for athletes and injury treatment: Science, safety, and legal concerns FDA issued its first warning letter to a dispenser (a medical spa) for violating the Drug Supply Chain Security Act (DSCSA), including failing to source products from authorized trading partners and Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law FDA to weigh easing limits on unproven peptides favored by RFK Jr. and MAHA supporters PBS News BPC 157: Experimental Peptide Creates Risk for Athletes People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian