GHK-Cu (Copper Tripeptide-1) is a naturally occurring copper-binding peptide studied for its role in cellular regeneration and tissue signaling. It has been widely researched for its involvement in processes related to skin remodeling, wound repair, and hair follicle stimulation. Due to its ability to bind copper ions and influence gene expression linked to repair pathways, GHK-Cu has become an important compound in regenerative and dermatological research.