GHK Cu Hair Foam for Women Cosmetic Scalp Support by Eden Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides GHK Cu (50 MG) Sigma Compounds GHK Cu for hair loss. Does it actually work? Let the science answer. Hair loss happens when follicles miniaturize, inflammation attacks them, blood supply weakens, and stem cells go dormant. GHK Cu addresses several Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density.