How GHK-Cu Works

GHK-Cu is a naturally occurring peptide fragment found in human plasma, saliva, and urine, though levels decline significantly with age. It possesses a uniquely high affinity for copper(II) ions ($text{Cu}^{2+}$), forming a stable complex that functions as a powerful signal for tissue repair and cellular maintenance:

• Collagen & Elastin Synthesis: GHK-Cu signals dermal fibroblasts to increase the production of collagen, elastin, and glycosaminoglycans (like hyaluronic acid). This strengthens the extracellular matrix, restoring skin density, firmness, and elasticity in research models.

• Gene Expression & Repair Signaling: Genomic studies reveal that GHK-Cu regulates thousands of human genes, upregulating genes associated with tissue repair, antioxidant defense, and cellular regeneration while downregulating pro-inflammatory and tissue-destructive pathways.

• Wound Healing & Angiogenesis: It accelerates wound closure by promoting cellular attraction (attracting macrophages and mast cells to injury sites), stimulating new blood vessel growth (angiogenesis), and clearing damaged tissue through controlled metalloproteinase activity.

• Hair Follicle Support: Beyond skin remodeling, GHK-Cu has been shown in hair follicle models to enlarge follicle size, inhibit hair follicle cell death, and stimulate hair growth pathways.

Chemical Properties