GHK-Cu is a naturally occurring copper peptide found in human plasma, saliva, and urine. Research suggests it plays a role in tissue repair by supporting collagen production, fibroblast activity, and blood vessel growth. Studies indicate that GHK-Cu may also help regulate biochemical pathways involved in healing, immune support, and antioxidant defense. Its molecular actions have been studied for decades in relation to skin and connective tissue health.





