GHK Cu (Copper Peptide) AzulBotanicals Reducing Redness & Inflammation with GHK Cu Copper Peptides Vitali Skincare GHK Cu Peptide Therapy Topical Cream BHive Management 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 What Is GHK Cu? The Copper Peptide That Rejuvenates Skin