GHK-Cu (Copper Tripeptide-1)is a naturally occurring peptide composed of the tripeptide glycyl-L-histidyl-L-lysine bound to a copper ion. It is primarily studied for its role in skin regeneration, including collagen and elastin production, as well as tissue repair and wound healing processes. It has also been examined for its effects on inflammation, oxidative stress, and hair follicle activity related to hair growth. For laboratory research only — not for human use.