GHK-Cu
The copper(II) complex of the tripeptide glycyl-histidyl-lysine. The 50 mg batch tested at 99.86% purity by Marfleet Analytical Services.
- Size50 mg / 100 mg
- Purity99.86% HPLC
- FormLyophilised powder
- Storage−20 °C
£19.99
In stock
Free UK delivery over £100 · Tracked UK delivery in 1–3 working days
- Same-day dispatchPaid before 2 pm, sent today
- Independently testedView lab reports
- Cold-chain packedInsulated, plain packaging
- Bank transfer or cryptoNo card details needed
For laboratory research use only. Not for human or veterinary use, and not a medicine, food or cosmetic.
Buy GHK-Cu UK – 50 mg and 100 mg vials
Looking for GHK-Cu UK? Ultra Peptides supplies GHK-Cu as a lyophilised research compound in 50 mg and 100 mg vials (50 mg for £19.99, 100 mg for £24.50), dispatched from the UK the same working day when you order and pay before 2 pm. The copper(II) complex of the tripeptide glycyl-histidyl-lysine. The 50 mg batch tested at 99.86% purity by Marfleet Analytical Services.

What is GHK-Cu?
GHK-Cu is the copper complex of GHK (glycyl-L-histidyl-L-lysine), a tripeptide first isolated from human plasma, where its concentration declines with age. The peptide binds copper(II) with high affinity, giving the powder its characteristic blue colour.
It is available in 50 mg and 100 mg vials. The 50 mg batch was tested by Marfleet Analytical Services in Hull at 99.86% HPLC purity.
GHK-Cu research overview
Researchers who order GHK-Cu UK from us typically work in the following areas. All of the work summarised here is preclinical – cell-culture and animal-model research – and is not evidence of any effect in people.
Extracellular matrix and collagen
GHK-Cu is widely used in fibroblast cultures to study collagen, elastin and glycosaminoglycan synthesis and matrix remodelling.
Gene-expression studies
Broad gene-expression analyses have linked GHK to the regulation of thousands of human genes, including antioxidant and DNA-repair pathways.
Copper transport
As a copper carrier, GHK-Cu is also studied in research on copper delivery to cells and copper-dependent enzymes.
For the primary literature, browse published studies on GHK-Cu copper peptide at PubMed.
GHK-Cu specifications
| Product | GHK-Cu |
|---|---|
| Sizes | 50 mg and 100 mg |
| Sequence / structure | Gly-His-Lys · Cu²⁺ |
| Molecular formula | C14H22CuN6O4 |
| Molecular weight | 401.9 g/mol |
| CAS number | 49557-75-7 |
| Purity | 99.86% (HPLC, current batch) |
| Form | Lyophilised powder in a sealed glass vial |
| Storage | −20 °C long term · 2–8 °C short term · protect from light |
| Lab report | Marfleet Analytical Services |
Purity and independent lab testing
The current GHK-Cu batch was analysed by Marfleet Analytical Services, an independent laboratory, and measured at 99.86% purity by HPLC. The full certificate is shown below and on our lab reports page.
Peptides are synthesised to the published sequence, lyophilised and sealed under controlled conditions, then stored cold and away from light until they are packed for dispatch.
Reconstituting and storing GHK-Cu
GHK-Cu arrives as a dry, lyophilised powder. Most researchers reconstitute it with bacteriostatic water, adding the diluent slowly down the inside of the vial and swirling gently rather than shaking. Use our reconstitution calculator to work out the concentration for the volume you add.
Unopened vials keep best frozen at −20 °C, or in the fridge at 2–8 °C for shorter periods, always protected from light. Once reconstituted, keep the solution refrigerated and avoid repeated freeze–thaw cycles – splitting it into aliquots helps. Our storage guide covers shelf life in detail.
Often researched alongside: Glow Blend.
Laboratory handling checklist for GHK-Cu
- Let the sealed vial reach room temperature before opening, so moisture does not condense on the powder.
- Wipe the rubber septum with 70% isopropyl alcohol and work on a clean surface.
- Add the diluent slowly down the inside wall of the vial and swirl gently until the powder has dissolved – do not shake.
- Label the vial with the concentration, the date of reconstitution and the batch number.
- Keep reconstituted solutions at 2–8 °C, protected from light, and use them within the stability window of your protocol.
- Record lot numbers in your lab notebook so results can be traced back to a specific batch.
Why order GHK-Cu UK from Ultra Peptides
- We are a UK supplier: everything ships from inside the UK, so there are no customs delays or surprise import charges.
- Independent laboratories test our batches, and the certificates are published openly rather than hidden behind a request form.
- Orders paid before 2 pm on a working day are dispatched the same day with tracking.
- We sell direct only – never through Amazon, eBay or marketplaces – so every vial comes straight from our own stock.
- Real people answer emails, usually within one working day.
Buying GHK-Cu UK: delivery and payment
Every GHK-Cu UK order is dispatched from the UK – no customs checks, import duties or border delays. Orders paid before 2 pm on a working day leave the same day by Royal Mail Tracked 48 and usually arrive within 1–3 working days. Delivery costs £4.99, and it is free on orders over £100, together with a free insulated storage box.
Parcels are packed in plain outer packaging with no branding or product names. You can pay by UK bank transfer – we email our account details after you order – or with USDC, USDT or Bitcoin. We never ask for or store card details. Ordering for a lab or institution? See our wholesale pricing.
GHK-Cu FAQ
Why is GHK-Cu blue?
The colour comes from the bound copper(II) ion. A blue powder and solution are normal.
Which GHK-Cu size should I choose?
The 100 mg vial costs only slightly more than the 50 mg vial, so it is far better value per milligram if your work uses larger quantities.
Is GHK-Cu suitable for human use?
No. Our GHK-Cu UK is sold strictly for laboratory research use. It is not a medicine, food supplement or cosmetic and must not be used in humans or animals.
How quickly will my GHK-Cu order arrive?
Orders paid before 2 pm on a working day are dispatched the same day and usually arrive within 1–3 working days. Delivery is free over £100.
How can I pay for GHK-Cu?
By UK bank transfer – we email our bank details right after you order – or with USDC, USDT or Bitcoin. We do not take card payments.
Will I receive a certificate of analysis?
Certificates for our tested batches are published on our lab reports page. If the batch you receive is not listed yet, email us your order number and we will send its analysis as soon as it is available.
How should I store GHK-Cu after delivery?
Put unopened vials in the freezer (−20 °C) or the fridge (2–8 °C) as soon as they arrive, away from light. After reconstitution, keep the solution refrigerated.
Do you ship outside the UK?
Not at the moment – we deliver to addresses in England, Scotland, Wales and Northern Ireland.
GHK-Cu is supplied for in vitro laboratory research only. Not for human or veterinary use. Buyers must be 18 or over and confirm research use at checkout.
Certificate of analysis
| Batch | Purity | Laboratory / method | Lab reports |
|---|---|---|---|
| – | 99.86% | Marfleet Analytical Services · HPLC | Certificate of analysis ↗ |
Reports are issued by independent laboratories (Freedom Diagnostics, USA; Marfleet Analytical Services, Hull). Click a report to open the full certificate.
For laboratory research use only – not for human or veterinary use. All Ultra Peptides products are sold strictly as research reference materials for in vitro use. They are not medicines, supplements, foods or cosmetics. Sold only to adults aged 18 and over.
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