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All research overviewsRESEARCH OVERVIEW

What Is GHK-Cu?

Last reviewed: 17 August 2026

GHK-Cu lyophilised reference material vial

GHK-Cu is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine, a sequence found naturally in human plasma. Its research interest comes from the copper coordination chemistry — the metal ion is central to the mechanisms studied, not incidental.

Tripeptide-copper complexGly-His-LysCell + tissue models
Research use only · Not for human consumption · 18+. This page describes the published scientific record for laboratory and educational research. It is not medical advice and not a recommendation to administer this compound to humans or animals.

How is GHK-Cu classified?

A metallopeptide: a short peptide defined by its bound metal ion. Reported plasma GHK concentrations decline with age, which is the framing most reviews use when introducing it.

How is its mechanism studied?

  • Copper ion transport and delivery to cells in binding-affinity studies.
  • Extracellular-matrix gene expression, including collagen and glycosaminoglycan synthesis in fibroblast models.
  • Broad gene-expression profiling, where published microarray work reports modulation across large gene sets.

What kind of research exists?

Decades of in vitro and tissue-model work, plus dermatological formulation studies. Much of the applied literature concerns topical preparations rather than systemic study designs — a distinction worth keeping in view when reading results.

What is it studied alongside?

AHK-Cu and other copper peptides, and in repair-model reviews alongside BPC-157 and KPV.

How does Neo Labs supply and handle it?

Supplied lyophilised with characteristic blue colouration, third-party tested with a batch COA. Cold, dark storage.

Primary literature

We link live PubMed searches rather than a fixed citation list, so you always land on the current indexed record — including papers published after this page was reviewed.

The indexed literature for these compounds is predominantly preclinical. Citations are provided for scientific reference and do not imply any human-use indication.

Important

For research use only. Not for human or veterinary consumption. Neo Labs supplies this compound solely as a laboratory reference material and makes no therapeutic, medical or performance claims. Nothing on this page is medical advice.

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