Is GHK Cu Legal? FDA Approved Peptides Neurogan Health Are Peptides FDA Approved? 2026 Legal List & Classification of 14 Peptides 2026 FDA Peptide Reclassification Purefico Medspa and Therapy 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 Peptide (50mg) Advanced Skin Rejuvenation & Healing Support GHK Cu FDA Approval Status 2026: Not Approved