GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis, GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Amazon.com: GHK Cu Copper Peptide Powder 99.7%+ Pure Cosmetic Grade Ingredient for DIY Serums, Creams & Scalp Tonics Supports Collagen & Fuller Hair (1g) : Beauty & Personal Care Patuxent Your body already knows how to heal. The question is whether the signals are still strong enough. One of the most fascinating peptides studied in regenerative medicine is GHK Cu, a