GHK Cu & SNAP 8 Peptides: My Skincare Secret for Collagen & Anti Aging Peptides are the hottest word in wellness right now, so naturally I had to dive in!, The peptide stack I am trialing is GHK CU (hair, skin & nails) and Glutathione (neutralizes free radicals, reduces Copper Peptide Firming Serum: Elasticity & Age Defying Dermaesthetics Beverly Hills What time of the day do I take GHK CU? #ghkcu #mt2 #bp #transformation I've been getting a lot of questions about GHK Cu, so here's a quick breakdown. GHK Cu is a copper peptide that naturally occurs in the body and plays a role in skin repair