GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Advanced GHK Cu Neck & Face Serum Premium Quality Neurogan Health Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: Buy high quality GHK Cu 50mg (copper peptide) from the UK's leading store Pure Peptides UK 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