PDF) GHK, the Human Skin Remodeling Peptide, Induces Anti Cancer Expression of Numerous Caspase, Growth Regulatory, and DNA Repair Genes What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu Side Effects, Complications, and Risk Profile