For laboratory research use only. Not for human consumptionEvery vial: QR to its own batch certificateUK-registered · third-party tested

GHK-Cu

Name: GHK-Cu
Brand: Axyn Peptides
SKU: AXN-GHK-CU
Price: 30 GBP
Availability: OutOfStock

Research use only · not for human consumption

GHK-Cu (Copper Tripeptide-1) is a glycyl-L-histidyl-L-lysine tripeptide bound to a copper(II) ion as a defined 1:1 complex. Supplied as a lyophilised research reagent with a Certificate of Analysis, for laboratory research use only. Not for human or animal consumption. Read the research on GHK-Cu →

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SKU: AXN-GHK-CU

Category: Best-Sellers, Skin & Cosmetic

Description

✓ Per-batch CoA✓ QR-to-CoA on vial✓ HPLC + MS (Janoshik)✓ Same-day UK dispatch

What it is

GHK-Cu is a copper-binding tripeptide, glycyl-L-histidyl-L-lysine (Gly-His-Lys) carrying a bound copper(II) ion, also catalogued under the INCI name Copper Tripeptide-1. The peptide holds the copper in a near-square-planar site formed by the N-terminal amine of glycine, the imidazole nitrogen of histidine and the deprotonated backbone amide nitrogen, giving a defined 1:1 peptide-to-copper complex rather than a loose salt. The free peptide has the molecular formula C14H24N6O4 (about 340.4 g/mol), while the copper complex is commonly written C14H22CuN6O4. It carries the CAS number 89030-95-5 for the complex.

Research context

GHK-Cu is studied as a model copper-delivery and matrix-signalling tripeptide in in-vitro fibroblast and tissue-remodelling research, and as a reference compound in copper-chelation and antioxidant assay work. It is supplied here purely as a laboratory reagent for such investigational use.

Research activity data from NIH

76 studies indexed on PubMed (NIH) for GHK-Cu as of August 2026. A measure of research volume only, not a claim of efficacy.

Sources: PubChem CID 139035031 · PubMed: GHK-Cu (NIH)

Handling and storage

Presented as a lyophilised powder. For research handling the powder is reconstituted with bacteriostatic water; store the lyophilised material cold and protected from light, and keep any reconstituted solution refrigerated and short-lived. The characteristic blue to violet colour is a useful stability cue, as fading toward green or brown can indicate copper release or oxidation.

Testing and quality

Supplied with a Certificate of Analysis. Specification covers stated copper content and 1:1 ratio, HPLC purity with chromatogram and mass spectrometry confirmation of the peptide. Supplied for laboratory research use only. Not for human or animal consumption.

Specification

PubChem CID (NIH)139035031

SEQUENCEGly-His-Lys (GHK) with bound copper(II) ion

MOLECULAR FORMULAC14H22CuN6O4 (1:1 copper complex)

MOLECULAR WEIGHT401.9 g/mol (copper complex)

CAS NUMBER89030-95-5

PURITY>=98% (HPLC)

FORMLyophilised powder

APPEARANCEBlue lyophilised powder

SHELF LIFE36 months at -20 C, sealed

RECONSTITUTION STABILITYUse within 2 to 4 weeks at 2 to 8 C after reconstitution

Frequently asked questions

What is GHK-Cu?

What it is
GHK-Cu is a copper-binding tripeptide, glycyl-L-histidyl-L-lysine (Gly-His-Lys) carrying a bound copper(II) ion, also catalogued under the INCI name Copper Tripeptide-1. Supplied lyophilised for laboratory research only.

What does the research say about it?

76 studies indexed on PubMed (NIH). We link the live record so you can review it. No health claims are made.

Is GHK-Cu legal to buy in the UK for research purposes?

Yes. Not a licensed medicine; supplied as a research chemical for laboratory research use only, to researchers aged 18+. Not for human or veterinary use.

How do I reconstitute it?

Reconstitute with bacteriostatic water; the volume added sets the concentration. See our reconstitution guide. No dosing guidance is provided.

What testing has been done on this product?

Third-party tested (Janoshik): HPLC purity with chromatogram and mass-spec identity, per-batch Certificate of Analysis, QR code on the vial linking to it.

What should it look like? (QC self-check)

A reconstituted solution should be a clear blue to violet colour, reflecting the intact copper complex; fading toward green or brown can indicate copper release or oxidation.

Research handling and related compounds

New to handling lyophilised material? See our reconstitution guide, the storage and shelf-life guide, and how to read a Certificate of Analysis.

Related research compounds in Skin & Cosmetic: MT-II.

Further reading: GHK-Cu copper peptide primer.

Additional information

Strength	100 mg, 50 mg

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