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10‑vial kitSkin RetaNord GHK-Cu research peptide — 10-vial kit

Copper tripeptide Copper peptide · Skin

GHK-Cu

GHK-Cu copper tripeptide · 10-vial research kit

Copper-binding tripeptide

GHK-Cu is a naturally occurring copper-binding tripeptide (glycyl-L-histidyl-L-lysine plus copper). It is extensively studied in skin, wound-healing and regenerative research.

€27950 mg · 10-vial kitIn stock

Vial size

Kit size

Both kit sizes ship within the EU — free shipping either way.

Order this kit How to use

Plain, unbranded packaging. No product names, no logos — nothing on the outside indicating what is inside. Tracked to a DPD Locker or your address.

Guaranteed delivery. If your order doesn't reach you, we ship it again free — lost, damaged or stolen.

Purity 99%+ HPLC

Kit 10 or 30 vials

Ships in 24–48h

For laboratory and in vitro research use only. Not for human or veterinary use, and not for use in diagnostic procedures.

EU-stocked & shippedDispatched in 24–48hFree shipping10 or 30-vial kitsSealed, lyophilized vials

About GHK-Cu

GHK-Cu is a copper complex of the tripeptide glycyl-L-histidyl-L-lysine, a sequence found naturally in human plasma. It is one of the most-studied peptides in skin, regenerative and wound-healing research and a common reference in cosmetic science. Supplied as a lyophilized 10-vial kit.

RetaNord supplies GHK-Cu as fixed kits of 10 or 30 lyophilized vials, each verified at 99%+ identity purity by independent third-party HPLC (Janoshik), and every kit ships with a lot-specific Certificate of Analysis. Supplied for laboratory and in vitro research use only.

How GHK-Cu works

GHK is the tripeptide glycyl-L-histidyl-L-lysine, a sequence that occurs naturally in human plasma. GHK-Cu is its copper(II) complex: the histidine imidazole nitrogen and the N-terminal amine coordinate the copper ion, giving a stable, soluble carrier.

Published work describes two roles that follow from that: delivering copper to cells, and acting as a modulator of gene expression in skin and wound models. Plasma GHK levels fall with age, which is why the peptide recurs in skin and regenerative research.

Mechanistic summary drawn from published literature, provided for research context only. Not a therapeutic claim.

What the research shows

A 2018 paper in International Journal of Molecular Sciences covers the gene-expression data; a 2015 review in BioMed Research International covers its role across skin-regeneration pathways.

GHK-Cu is well established as a cosmetic-science ingredient and as a laboratory reagent. It is not an approved medicine.

An educational summary of published literature. It is not a claim about any outcome for any buyer, and RetaNord supplies this compound for laboratory research use only.

Storage & handling

Sealed, lyophilized vials. 2–8 °C for routine storage; −20 °C or below for long-term. Room temperature is for transit and handling only — it is not a storage state for a peptide.

Once reconstituted. Keep at 2–8 °C and never freeze — ice crystals cause irreversible damage. Reconstituted with bacteriostatic water (0.9% benzyl alcohol) a vial is commonly used within about 30 days; with plain sterile water, within 24–48 hours.

Keep vials sealed and protected from light, and minimise freeze–thaw cycles of frozen stock — each cycle costs potency.

Work out concentration and draw volume in the reconstitution calculator →

Specifications

Category	Skin & Anti-Aging
Compound class	Copper-binding tripeptide
Presentation	10 vials per kit · lyophilized
Available sizes	50 · 100 mg per vial
CAS number	89030-95-5
Molecular formula	C₁₄H₂₃CuN₆O₄⁺
Molecular weight	≈ 403 g/mol (copper complex)
Physical form	Sterile-filtered, freeze-dried
Identity purity	99%+ (HPLC)
Independent testing	Janoshik · third-party HPLC
Storage	2–8°C; −20°C long term
Documentation	Lot-specific Certificate of Analysis

Certificate of Analysis — batch VJ242257Independent third-party testing by Janoshik · HPLC purity 99.523% and content verified.View the full report →

References & research

Selected peer-reviewed literature via PubMed, provided for educational context. A reference does not imply a clinical claim for RetaNord products.

GHK-Cu — questions

Do the kits come with a Certificate of Analysis?

Yes — every kit ships with a lot-specific third-party Certificate of Analysis: independent HPLC purity and content testing by Janoshik, with the batch matching your vials. View the current CoA.

Why is it blue-green?

The copper (Cu) bound to the GHK tripeptide gives GHK-Cu its characteristic blue-green colour in solution. Supplied for laboratory research use only.

Why is this sold as a 10-vial kit?

These research compounds are supplied in fixed kits of 10 identical vials — the standard research quantity. One kit (10 vials) is the minimum order to the EU.

How should GHK-Cu be stored?

Sealed lyophilized vials keep at 2–8 °C, or −20 °C for long-term storage. Once reconstituted, keep refrigerated and never freeze it. See storage & handling for the full detail.

How do I work out the concentration?

The volume of bacteriostatic water you add sets the concentration — the vial size alone does not. Enter your vial size and diluent volume in the reconstitution calculator to calculate the concentration for your assay.

What is the difference between GHK and GHK-Cu?

GHK is the bare tripeptide (glycyl-L-histidyl-L-lysine, CAS 49557-75-7). GHK-Cu is the same peptide bound to a copper(II) ion. Most published skin and wound work uses the copper complex.

Documented peptides, shipped from the EU.

Every RetaNord kit ships within 24–48 hours, discreetly packaged and tracked. All kits ship within the EU. For laboratory research use only.

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