Your skin heals better when your barrier is strong. Topical GHK Cu peptide helps support that process GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Peptide Therapy for Pain Management and Healing Core Medical & Wellness GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has NAD+ vs GHK Cu: Why Energy and Repair Are Two Completely Different Systems