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GHK-Cu is a naturally occurring copper-binding tripeptide present in human plasma that declines with age. It is common in both skin and regenerative research.
In the research literature, GHK-Cu is most commonly studied for collagen production, skin remodeling and antioxidant activity.
For laboratory and research use only. This is general educational information, not medical advice, and is not a claim about safety or efficacy in humans.












Always ask for a batch-specific Certificate of Analysis (COA) covering purity (HPLC) and identity (mass spec), and favour suppliers with independent, third-party testing and transparent shipping and return policies. Research peptides may be regulated where you live — you are responsible for complying with local laws.