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 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 GHK Cu FDA Approval Status 2026: Not Approved Regulatory Alert: FDA's April 2026 Update on BPC 157 and GHK Cu Holt Law 2026 FDA Peptide Reclassification Purefico Medspa and Therapy GHK Cu Wholesale Pricing