Buy GHK-Cu UK
The copper tripeptide. Vials at 50mg and 100mg, plus a 100mg pen. Research use only.
from £24.993 options
- In stock Ships from the UK
- Same-day dispatch Order before 2pm
- Tracked delivery Free over £75
- Certificate of analysis On request
GHK-Cu is on the shelf at diluent.co.uk, held in British stock rather than ordered in, priced from £24.99 for the 50mg vial. It comes in 2 strengths, 50mg, 100mg, as vial and pen. A weekday order placed before 2pm goes out the same day, tracked, boxed with nothing on the outside about the contents.
Shipping from inside the country is what removes the customs step: no clearance, no import charge, nothing sitting at a border. Purity is ≥99% by HPLC on every batch, and the certificate for the lot you are sent is yours on request against the number on the label.
Delivery runs £4.95, free above £75, tracked start to finish. See how ordering works.
Choose your GHK-Cu
3 options
GHK-Cu 50mg
Vial · £0.50/mg
GHK-Cu 100mg
Pen · £0.46/mg
GHK-Cu 100mg
Vial · £0.40/mg
GHK-Cu is also supplied in
All combinations →
Skin + Repair Stack
More in Skin & Pigment
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What is GHK-Cu?
Three residues, glycyl-L-histidyl-L-lysine, carrying a copper ion. That copper is held inside the complex rather than sitting alongside it.
Specification
| Residues | 3 (Gly-His-Lys) |
|---|---|
| Metal | Copper, bound in the complex |
| Purity | ≥99% by HPLC |
| Vial strengths | 50mg, 100mg |
| Pen strength | 100mg |
| Certificate | On request, against the batch number |
What has GHK-Cu been studied for?
The record behind GHK-Cu includes 1 human study, which few compounds in this catalogue can say. Below is what each paper set out to examine, sorted by the model it ran in:
Human studies
- Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data, Review; human gene-expression analysis (PMID 29986520)
Reviews of the literature
- GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration, Review; in-vitro and gene-expression data (PMID 26236730)
Each line describes what a paper looked at. None of it reports an effect in a person, and no part of this site tells anyone how to use anything.
Where and how to buy GHK-Cu in the UK
How do you order?
Pick a strength from the table, put it in the basket and check out. There is no account to set up. The confirmation reaches you straight away and the payment details follow by email, because no card is taken on the site.
Why does UK stock matter?
The GHK-Cu you order leaves a warehouse in Britain. That means no customs step, no import charge and no days lost in transit from abroad. Before 2pm on a working day and it is collected that afternoon, tracked, in an outer box that gives nothing away.
What arrives in the box?
| Purity | ≥99%, by HPLC |
|---|---|
| Labelling | Compound, strength, format, purity, research-use statement and a batch number |
| Certificate of analysis | On request, matched to your batch number |
| Delivery | Tracked, UK only. £4.95, free over £75 |
| Returns | 14 days on unopened, sealed items, terms |
Reconstituting GHK-Cu
The vial arrives as a freeze-dried cake. It becomes a solution once bacteriostatic water goes in, and how much you add is what decides the strength of that solution. The quantity in the vial never changes, only the volume it is spread through.
What you see here are concentrations and volumes. Nothing on this site is dosage, protocol or administration guidance, and no number above is one either.
Loaded with 50mg and 2ml to start. Move either control and the numbers move with it. The full reconstitution calculator goes further, into syringe units, which water to pick and how long a mixed vial lasts.
| Vial | + 1ml | + 2ml | + 3ml | + 5ml |
|---|---|---|---|---|
| 50mg | 50 mg/ml | 25 mg/ml | 16.67 mg/ml | 10 mg/ml |
| 100mg | 100 mg/ml | 50 mg/ml | 33.33 mg/ml | 20 mg/ml |
Take the 50mg vial: 2ml of bacteriostatic water puts it at 25 mg/ml. The sum is the milligrams on the label over the millilitres you put in. Every figure here is a concentration. None of them is a dose, and this site carries no dosage, protocol or administration guidance at all.
Asked about mixing GHK-Cu
How much bac water for 50mg GHK-Cu?
Whatever volume goes in, the 50mg lands somewhere on this scale: 1ml gives 50 mg/ml, 2ml gives 25 mg/ml, 3ml gives 16.67 mg/ml, 5ml gives 10 mg/ml. We keep that size, so you will find it in the table above and as a choice in the picker.
How much bac water for 100mg GHK-Cu?
Whatever volume goes in, the 100mg lands somewhere on this scale: 1ml gives 100 mg/ml, 2ml gives 50 mg/ml, 3ml gives 33.33 mg/ml, 5ml gives 20 mg/ml. We keep that size, so you will find it in the table above and as a choice in the picker.
How should it be handled?
- Let a refrigerated vial reach room temperature first.
- Wipe the stopper with an alcohol swab every time you go in.
- Aim the water at the glass wall so it runs down, not straight onto the cake.
- Roll it gently between your fingers. Shaking makes foam, and foam is damaged protein.
- Give it a few minutes to go into solution. Done properly it finishes clear.
Storing GHK-Cu
| Sealed vial | Somewhere cool, dry and dark. For anything long term, the freezer. |
|---|---|
| Once reconstituted | Fridge, standing upright, away from light. Never freeze it once mixed. |
| Pen | Comes ready mixed, so it goes in the fridge immediately. |
How long does it keep?
| Stored as | Keeps for |
|---|---|
| Sealed, frozen at −20 °C | Years. Nothing holds a lyophilised peptide better than this |
| Sealed, refrigerated at 2–8 °C | Months |
| Sealed, at room temperature | Weeks. Fine while it is in the post, not a place to keep it |
| Reconstituted, refrigerated | Think weeks, not months. Four weeks is the number most people work to once bacteriostatic water is in, which is exactly what its preservative is there for |
| Reconstituted, frozen | Best avoided. Ice crystals tear at peptides, and every freeze–thaw round makes it worse |
Treat these as the usual numbers for lyophilised peptides, not a stability result measured on one batch. Cold and dry buys time; moisture, heat, light and being shaken about take it away. Ask and we will send the batch certificate of analysis.
Is GHK-Cu legal in the UK?
We sell GHK-Cu as an unlicensed research compound, for laboratory research use only. There is no UK marketing authorisation behind it, it is not a licensed medicine, and it is not for human use, veterinary use or food.
Nothing of this kind is a controlled drug, and selling it as laboratory material is lawful. Selling or marketing it for people to take is not. That line is the reason you will not find a dose, a protocol, a route, a frequency or a medical claim anywhere on this site, and the reason asking for one by email gets the same answer.
A few molecules in this range also appear inside a licensed medicine sold under a brand name. That authorisation belongs to the finished product it was granted for; it does not follow the molecule anywhere else. Full terms.
GHK-Cu questions
What does the Cu mean?
It is the copper, held within the molecule itself and not simply mixed in next to it.
What research exists on GHK-Cu?
Reviews and gene-expression analysis, all of it on skin regeneration pathways.
Is GHK-Cu in your blends?
It is, in three of them: GLOW, KLOW and the Skin + Repair Stack.
What does GHK-Cu do?
We stock GHK-Cu as an unlicensed research compound, sold for laboratory research and nothing else, assayed by HPLC at ≥99% purity. Its specification and the papers behind it are both further down this page.
Where to buy GHK-Cu?
GHK-Cu is available in the UK from diluent.co.uk, from £24.99, 2 strengths, 50mg to 100mg, as vials and pens. It has already arrived in the country, so there is nothing left to declare and nothing for anyone to collect on the doorstep. Buy bigger and the milligram gets cheaper: £0.40/mg at the keenest rate against £0.50/mg on the smallest vial, with every size carrying its own number. It turns up as freeze-dried powder, so the concentration is yours to set when you mix it. It also turns up inside 1 other product we sell. Get the order in before 2pm on a weekday and it leaves that day, tracked, plainly packaged. Batches go to a third-party lab and come back at ≥99% by HPLC, and the certificate for yours is there if you ask, see how to order.
How much is GHK-Cu?
It starts at £24.99 for the 50mg, £0.50 per mg. 3 options in all, each with its own price and its own rate per milligram. Postage runs £4.95, and nothing at all above £75.
Does GHK-Cu need to be refrigerated?
Still sealed and dry it will sit for years at −20 °C, months in a fridge at 2–8 °C, weeks at room temperature. Cold and dry is what buys the time. After mixing it goes in the fridge standing up, and four weeks is the figure most work to with bacteriostatic water. Never freeze it once mixed: ice crystals tear peptides apart and each freeze–thaw round does it again.
Is GHK-Cu legal in UK?
We sell GHK-Cu as an unlicensed research compound for laboratory research, and for nothing else. No UK marketing authorisation stands behind it, it is not a licensed medicine, and it is not for human or veterinary use. We are not a pharmacy.
What purity is your GHK-Cu, and can I see a certificate?
≥99%, measured by HPLC. Quote the batch number on your label and we will send the certificate of analysis for that lot. If you would rather see where current stock sits before you commit, ask and we will tell you.
References
- GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. BioMed Research International, 2015. PMID 26236730
- Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data. International Journal of Molecular Sciences, 2018. PMID 29986520
Each one links out so you can read the paper itself.