Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips What is the optimal dosing regimen of GHKCu for topical skincare and woundhealing applications? Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B