GHK Cu: My secret weapon for skin, hair, and healing, I use it two ways topical cream for my face, and subQ injections 3x a week., It boosts collagen, tightens skin, helps hair grow, and even Ghk Cu Peptide Injection IV Vitamin Therapy A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend GLOW (BPC 157 GHK CU KPV TB500) Injections Team Wellcore The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline