GHK-Cu Research Guide

GHK-Cu is a naturally occurring copper peptide the human body has produced since before birth, where it functions as a key repair signal for skin, hair, and tissue. Published research documents a sharp age-related decline in natural production, with studies noting levels around age 60 as roughly two and a half times lower than at age 20, a decline associated in the literature with skin laxity, slower healing, and thinning hair. Published research documents GHK-Cu's association with collagen production, and studies note its relevance to redness, irritation, and tissue repair.