The research on GHK Cu goes back over 40 years a scientist dedicated his entire career to it. Your body already makes it. You just make about 60% less of it by GHK CU (50mg) Nordsci Synergy of GHKCu and hyaluronic acid on collagen IV upregulation via fibroblast and exvivo skin tests Jiang 2023 Journal of Cosmetic Dermatology Wiley Online Library GHK Cu Research Overview Copper Peptide Studies
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studies on ghk cu Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application