GHK CU Topical Serum 30ml Azur Skin GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin Advanced skincare, elevated Now available: Facial Beauty Serum with Copper Peptide (GHK Cu) by Quicksilver Scientific This elegant topical serum features cosmetic grade copper peptide to support smoother, more radiant looking skin and overall GHK Cu Injections in Napa & Sonoma