GHK Copper Peptides: Research Vials and Their Kovera Labs Reports

Eternal Peptides Wholesale · Updated 2 November 2026

GHK copper peptides are the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine, usually written GHK-Cu. Eternal Peptides Wholesale supplies GHK-Cu in four research formats: two single-compound strengths and two multi-peptide blends. Every one of them is batch-tested by Kovera Labs for purity and identity, endotoxin, heavy metals and sterility, and every certificate is published on the product page with a link to the laboratory's verification record.

This page puts the four formats and their test results side by side.

The four GHK-Cu research formats

All four are supplied as lyophilised powder in boxes of 10 vials, with free shipping on all product orders. For the blends, each product page also lists the reported amount of each component peptide for the tested batch.

What the Kovera Labs reports record for GHK copper peptides

Every peptide listing in this group carries the full four-report Kovera Labs panel, published on its product page:

• Purity and identity (COA): RP-HPLC purity, measured net content per vial (mg) and identity confirmed by LC-MS.
• Endotoxin: result in EU/mL against the ≤ 0.5 EU/mL criterion printed on the certificate, with a final determination of PASS.
• Heavy metals (ICP-MS): lead < 0.5 ppm (criterion ≤ 10), arsenic < 0.15 ppm (≤ 1.5), cadmium < 0.05 ppm (≤ 0.5) and mercury < 0.3 ppm (≤ 3).
• Sterility screen: bacteria (aerobic/anaerobic) no microbial growth detected and fungi/yeast not detected after a 2-day incubation at 30–35 °C, with the final determination "SAMPLE PASSES STERILITY SCREEN".

Each certificate carries a batch number, report ID and report date, and a Verify on Kovera Labs button that opens the laboratory's own verification record. The batch number printed on the vial image matches the tested batch.

Endotoxin for all four GHK-Cu batches is reported at < 0.20 EU/mL. The full results table, the original certificate images and the verification buttons sit in the lab-reports section of each product page, and the same data is indexed as text in the Kovera Labs COA library.

Want the detail on how each method works and how to match a certificate to your stock? Read how we test: purity, endotoxin, heavy metals and sterility and Kovera Labs peptide testing explained.

Choosing a GHK-Cu format for a research protocol

• Single compound, standard strength: CU50 suits protocols that need GHK-Cu alone at 50 mg per vial.
• Single compound, higher content per vial: CU10 carries 100 mg per vial (106.11 mg measured on the tested batch), which means fewer vials to reconstitute for larger studies.
• Multi-peptide studies: GL70 and KLOW80 combine GHK-Cu with BPC-157 and TB-500, and KLOW80 adds KPV. Each blend carries its own four-report Kovera Labs panel, and the product page lists the reported amount of each component.

To buy the single compound, go to GHK-Cu research vials in Australia. Blends are grouped in the blends category, and all skin-biology research compounds are in longevity and skin.

The science behind GHK copper peptides

GHK was first reported in 1973 as a tripeptide in human serum, and it binds copper(II) with high affinity. Published GHK-Cu research mainly uses cell culture, animal models and gene-expression data. Our evidence review sets out the chemistry, the copper-binding data, what laboratory studies have measured and Australia's regulatory position: Copper peptides: GHK-Cu chemistry, biology and evidence. For the free tripeptide itself (formula, mass and identifiers), see GHK and GHK-Cu names and identifiers. For a discussion of topical skin studies, see GHK-Cu and copper peptides: what skin studies measure.

Wholesale and repeat supply

Laboratories ordering GHK-Cu regularly can request volume pricing through wholesale supply. The Kovera Labs certificates for each tested batch stay published on the product pages, so wholesale buyers can check the same batch documents.

For laboratory research use only. Not for human or veterinary use. Eternal Peptides Wholesale supplies research customers across Australia. Dispatch origin can vary and may include offshore fulfilment, as set out in our shipping policy.

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Frequently asked questions

What are GHK copper peptides?

GHK copper peptides are the copper(II) complex of the tripeptide glycyl-L-histidyl-L-lysine, written GHK-Cu. Eternal Peptides Wholesale supplies GHK-Cu as 50 mg and 100 mg research vials and in the Glow and KLOW blends, for laboratory research use only.

How are your GHK-Cu batches tested?

Each GHK-Cu batch has four Kovera Labs reports: RP-HPLC purity with LC-MS identity and net content, endotoxin in EU/mL, heavy metals (lead, arsenic, cadmium and mercury by ICP-MS) and a sterility screen for bacteria and fungi. The 50 mg batch EP-260529-GH50 recorded 99.328% purity and the 100 mg batch EP-260529-GH100 recorded 99.269%.

Can I verify a GHK-Cu certificate myself?

Yes. Every certificate on the product page has a Verify on Kovera Labs button that opens the laboratory's own verification record. Match the report ID and batch number on the certificate to the batch number on your vials.

Which GHK copper peptide format should I choose?

CU50 and CU10 contain GHK-Cu alone at 50 mg and 100 mg per vial. The Glow and KLOW blends combine GHK-Cu with BPC-157 and TB-500, and KLOW also contains KPV. Each blend has its own Kovera Labs certificates, and the product page lists the reported amount of each component in the tested batch.

What is the difference between GHK and GHK-Cu?

GHK is the free tripeptide glycyl-L-histidyl-L-lysine. GHK-Cu is its 1:1 complex with copper(II), which is the form Eternal Peptides Wholesale supplies. Our copper peptides evidence review lists the formula, mass and identifiers for both.