Best GHK Skin Cream GHK Benefits: Improve Skin Dramatically with Skin Biology Products Best Crepey Skin Cream Does It Work? Buy or Shop Skin Biology Products by Biochemist Dr. Pickart 7% GHK CU ACCELERANT Platinum Skin Care GHK CU Topical Slide Case Holder Locking Top Etsy GHK Cu Copper Peptide 0.5% (topical foam) 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