GHK CU Copper Peptide Skin Care Bundle AS Wellness by Ageing Solutions GHK CU Topical Serum Kit 50ml Azur Skin 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 GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion GHK Cu Peptide: Benefits, Uses and Dosage