Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law FDA Review Moves Peptides From Gray Market to Mainstream Fitt Insider GHK Cu Copper Tripeptide 1 Research Reagent The FDA just changed the rules on peptides effective April 15, 2026. BPC 157, GHK Cu, MOTS C, and TB 500 have been removed from the Category 2 restricted compounding list. Here is what Nine Anticipated FDA Approvals for January 2026 Guideline Central