GHK-Cu research peptide

GHK-Cu peptide is the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine, supplied here as lyophilized powder for laboratory research. Often called copper peptide, it is among the most widely studied compounds in skin and extracellular matrix biology.

What is GHK-Cu peptide?

GHK is a naturally occurring tripeptide with a high affinity for copper ions. It was first isolated from human plasma in 1973, and the copper complex has been studied continuously since. GHK-Cu peptide is small, at three residues, and is typically supplied in larger vial sizes than longer peptides.

Most of the literature concerns matrix biology. In fibroblast culture and wound models, the complex has been examined for its association with collagen and glycosaminoglycan synthesis, and more recent studies profile its broad effects on gene expression. A general overview is available in the copper peptide GHK-Cu reference article.

GHK-Cu peptide research areas

In the published literature, GHK-Cu peptide has been examined in the following areas, mostly in cell and animal models:

• Collagen and glycosaminoglycan synthesis in fibroblast culture
• Wound healing and tissue remodelling models
• Copper transport and delivery
• Gene expression profiling studies

This summary is provided for context only. It is not a statement of use, safety or efficacy.

GHK-Cu peptide specifications

• Sequence: Gly-His-Lys, copper(II) complex
• Molecular formula: C₁₄H₂₄N₆O₄ (free peptide)
• Molecular weight: 340.4 g/mol (free peptide)
• CAS number: 89030-95-5
• Length: 3 residues
• Form: lyophilized (freeze-dried) powder in a sealed vial

Buy GHK-Cu peptide for research

We supply GHK-Cu peptide in research grade 50 mg and 100 mg vials. Current prices are listed in the table further down this page. Use the Order button beside any size to send an enquiry with that item already filled in.

Each lot of GHK-Cu is analysed for purity by HPLC and for identity by mass spectrometry, and a Certificate of Analysis is supplied with the order. If you need a document for a specific lot before you buy, ask through the contact page.

Wholesale GHK-Cu peptide orders

Wholesale orders start at a minimum of 50 units, and you can request any quantity above that. Tell us the size and number of vials you need and we will confirm the total by email. We accept Apple Pay, Zelle, Chime, Cash App, USDT and Bitcoin.

How to store GHK-Cu peptide

Keep the lyophilized powder at -20°C, protected from light and moisture, for long-term storage. After reconstitution, store the solution at 2 to 8°C and use it within the timeframe shown on the Certificate of Analysis. Avoid repeated freeze and thaw cycles, which can degrade any peptide.

Researchers who work with GHK-Cu often also order BPC-157 peptide. You can see every compound we carry in the research peptide catalogue.

GHK-Cu peptide: common questions

What purity is your GHK-Cu peptide?

Purity is measured by HPLC for every lot and printed on the Certificate of Analysis that ships with it. Identity is confirmed separately by mass spectrometry, so you can check both what the material is and how pure it is before you use it.

Why is GHK-Cu peptide supplied as a powder?

Peptides are far more stable dry than in solution. Freeze-drying removes water without heat, which protects the peptide during shipping and storage. The powder is reconstituted in the laboratory shortly before it is needed.

Can I order a single vial?

Our standard terms are wholesale, with a minimum order of 50 units. If you need a smaller quantity for evaluation, send an enquiry and tell us what you are looking for.

Is GHK-Cu peptide for human use?

No. It is sold for laboratory and in-vitro research use only. It is not for human or animal consumption and is not intended to diagnose, treat, cure or prevent any disease.