GHK-Cu is a three-building-block peptide (glycine, histidine, lysine) joined to copper (formula C14H24N6O4, average mass 340.38 g/mol, CAS 49557-75-7). GHK-Cu is sold here for laboratory research in 2 sizes (50mg to 100mg), from $39.00 a vial. It is not an FDA-approved medicine. Research use only, and never for people or animals.
GHK-Cu specifications
| Product name | GHK-Cu |
|---|---|
| Also sold as | GHK-Cu copper peptide, copper peptide GHK-Cu, copper tripeptide-1 |
| Formula | C14H24N6O4 |
| Average mass | 340.38 g/mol |
| CAS number | 49557-75-7 |
| Physical form | Freeze-dried powder, a solid cake in a sealed vial |
| Appearance | Colored cake, this compound carries its own color rather than being dyed |
| Sizes on this page | 50mg · 100mg |
| Purity specification | ≥99% by RP-HPLC. The number for the lot you receive is whatever its own certificate says. |
| Identity check | Mass spectrometry, read against the mass this compound should have |
| Net content | Weighed per lot and reported separately from purity |
| Lot documentation | 2 of 2 sizes have a published Kovera Labs certificate (50mg, lot LF-11A-2609; 100mg, lot LF-11B-2609) |
| Storage | Sealed, cold and out of the light |
| Ships from | Santa Ana, California by USPS with tracking on every order, same business day on verified in-stock orders placed before 12 PM Pacific |
| Intended use | Laboratory research only. Not for human or animal use. |
What is GHK-Cu, and what is it used for?
GHK-Cu is also listed and searched as GHK-Cu copper peptide, copper peptide GHK-Cu, copper tripeptide-1. They all mean the same compound. Supplier lists write it as GHK-Cu peptides or peptide GHK-Cu as well; every one of those is this record. A name is not a test, which is why the lot record further down counts for more than the wording on a label.
Chemically: molecular formula C14H24N6O4, average mass 340.38 g/mol (PubChem CID 73587). GHK-Cu as supplied is the copper(II) complex of that tripeptide, not the free peptide, so an identity test on this material does not resolve to the figures above.
A three-building-block peptide (glycine, histidine, lysine) joined to copper.
The peptide grips copper tightly, and the copper-carrying form is what the research is about. Its blue color comes from that copper, not from the peptide. Published work covers the copper chemistry and the biology of the material between skin cells, in culture.
A substantial body of cell-culture work on copper-peptide chemistry and the material that holds skin tissue together.
No approved drug product. The copper-carrying form and the bare peptide are different chemicals with different stability, and a certificate should make clear which one is in the vial.
GHK-Cu for sale: 50mg and 100mg vials, price per mg
GHK-Cu is sold in 2 sizes here, 50mg and 100mg, from $39.00 a vial. GHK-Cu cost and GHK-Cu price per mg by size are in the table, at each volume tier and on subscription; the per-mg figure under each price is the one that compares across sizes.
Volume and subscription pricing by size
| Size | One vial | 10–19 vials−10% | 20 vials−15% | Subscribe monthly−6% from shipment 2 | Availability |
|---|---|---|---|---|---|
| GHK-Cu 50mg | $39.00$0.78/mg | $35.10a vial · $0.70/mg | $33.15a vial · $0.66/mg | $36.66a vial, shipment 2 on · $0.73/mg | In stock |
| GHK-Cu 100mgBest per mg | $59.00$0.59/mg | $53.10a vial · $0.53/mg | $50.15a vial · $0.50/mg | $55.46a vial, shipment 2 on · $0.55/mg | In stock |
The 100mg vial works out 24% cheaper per mg than the 50mg. Volume tiers are per size and do not combine across sizes (see bulk pricing). Subscribe & Save takes 6% every month, 4% every 2 months or 2% every 3 months off from shipment 2, two shipments minimum, and stacks on the volume tier: the lowest this record ever bills is $0.47 per mg, twenty 100mg vials on a monthly subscription from shipment 2 onward.
Nothing is added at checkout except the USPS shipping you choose; dispatch and delivery are the same on every order. The cost-per-milligram tool ranks the whole catalog by price per mg. The certificate walked through field by field: Where to Buy GHK-Cu Peptide: Five Checks Before You Order.
Where to buy GHK-Cu: what to check before you order from anyone
Where to get GHK-Cu
GHK-Cu for sale, or GHK-Cu peptide for sale, means this page: one record, 2 sizes. You can buy GHK-Cu online here with guest checkout; verified in-stock orders placed before 12 PM Pacific are dispatched the same day. If the question is where to get GHK-Cu or how to get GHK-Cu, the answer for a US laboratory is a supplier who publishes the certificate before you pay, which is the first of the five checks that follow.
Before ordering GHK-Cu from anyone, us included, run the 5 checks on verifying a certificate; the first is that the report resolves on the laboratory's own site, and a seller who cannot pass them is asking for the trust a certificate exists to replace.
GHK-Cu reviews
No customer review of GHK-Cu has been published yet, so there is no star rating here; when real ones exist the number will be the arithmetic of what people wrote. Ordered this record? Leave a review. A person reads every one before it appears.
GHK-Cu cream or serum? What this vial is, and is not
Search results for GHK-Cu also show cream or serum products, under listing titles such as ghk cu topical, ghk cu serum, topical ghk cu, ghk-cu cream, ghk-cu peptide serum, ghk cu peptide topical. Those are finished consumer goods made and marketed by other companies, and none of them is what this page sells. This record is freeze-dried GHK-Cu in a sealed glass vial, 50mg and 100mg, with a lot certificate, supplied for laboratory work. Its certificate describes that powder, not a capsule, spray or cream, which carry other ingredients and sit under different rules.
GHK-Cu vs GLOW: the single compound, and the blend that contains it
GHK-Cu is a single compound with its own formula and certificate. GLOW is a blend name for GHK-Cu freeze-dried together with other peptides in one vial, so a certificate for the blend reports on the mixture, not on GHK-Cu alone. Which record you want depends on whether the work calls for the compound by itself.
| Record | Class | Formula | Avg. mass | Sizes here |
|---|---|---|---|---|
| GHK-Cu | A three-building-block peptide (glycine, histidine, lysine) joined to copper. | C14H24N6O4 | 340.38 | 50mg · 100mg from $39.00 |
| GLOW | A brand name for several peptides freeze-dried together in one vial. | blend of 3 | — | 70mg from $110.00 |
Documentation compared in full: GHK-Cu vs GLOW, side by side.
GHK-Cu guides and documentation
Written to answer the questions that come up around GHK-Cu specifically, what its paperwork should show, how it is handled, and how to judge a supplier selling it.
- GHK-Cu certificates of analysis: why identity is the harder field for a metal complex
- How GHK-Cu identity testing works: the copper isotope pair, and the awkward chromatography
- GHK-Cu storage and stability: the coordination chemistry sets the handling rules
- Glow peptide: what is in a GLOW vial, and why the ratio lives on the certificate
- GLOW certificates of analysis: how to read a report on three peptides at once
- How GLOW identity gets confirmed when one sample holds three peptides
The full library, grouped by what you came to answer, is in the laboratory guides.
The GHK-Cu certificate: lot, purity, identity, and how to verify it
A certificate answers identity, purity and net content as three separate questions, each with the method that produced it and the date it was run, how to read one covers what each field does and does not cover. The figure usually quoted for GHK-Cu is 340.38 g/mol for C14H24N6O4, from PubChem CID 73587, and it does not describe what is in this vial. GHK-Cu as supplied is the copper(II) complex of that tripeptide, not the free peptide, so an identity test on this material does not resolve to the figures above. So the mass on the lot certificate is the one to read; a listing that quotes the published figure for this material is quoting the wrong molecule.
Listings elsewhere describe GHK-Cu as an acetate, an arginate salt or an N-acetyl form. Those are different chemical forms with different masses, and a certificate identifies which one was actually tested. The form of the lot on this page is whatever its certificate states; it is not assumed from a listing name, ours included.
| Size | Lot | Identity method | Purity | Endotoxin · sterility · fentanyl | Test date |
|---|---|---|---|---|---|
| 50mg | LF-11A-2609 | LC-MS | 99.682% (RP-HPLC, C18, DAD @ 214 nm) | 2026-09-29 | |
| 100mg | LF-11B-2609 | LC-MS | 99.714% (RP-HPLC, C18, DAD @ 214 nm) | 2026-09-29 |
Testing by Kovera Labs. Every batch tested on or after October 1, 2026 includes endotoxin, sterility and fentanyl screening, in addition to identity, purity and net content. Open the report, then confirm it on the issuing laboratory's own site. If the identifier does not resolve there, or resolves to a different lot than the one printed on your vial, the document is worthless however convincing it looks.
- Certificate for lot LF-11A-2609 · Report PDF · Verify at Kovera Labs
- Certificate for lot LF-11B-2609 · Report PDF · Verify at Kovera Labs
The lot number on the certificate must match the lot printed on the vial you received. That match is the only thing tying the document to your material. Net content is reported separately from purity, because a vial can be highly pure and still hold less material than its label states.
Is GHK-Cu legal? FDA status, and what this listing is
FDA status, and what this listing is Not an FDA-approved drug product
The FDA has not approved this compound for anything, and nothing in this catalog is a medicine.
Status verified 2026-08-25. Check the primary source before relying on this summary.
Whether GHK-Cu is legal depends on what it is being used for and where. It is sold as laboratory material under the research-use restriction below. Being listed is not an approval, and not a claim that it is safe, effective or right for any purpose.
GHK-Cu research: what the published studies examine
Status: No FDA-approved application. This compound is sold as laboratory material. Where research on it has been published, it sits at the animal, cell or early-human stage, and this record does not summarize what it found. A supplier is not a neutral judge of evidence about its own catalog.
GHK is a three-building-block peptide, and the copper-carrying form is what the research describes. Two things make it unusual. The first is how little it takes: effects on collagen production are reported in skin cell culture at concentrations far below where most active ingredients register anything at all. The second is how broadly it acts. Gene analysis credits the copper form with shifting the activity of roughly 4,000 human genes, around 31% of those looked at, in both directions rather than turning everything up.
The copper is not along for the ride. It is the part that engages signalling at the skin cell surface, which is why the copper form and the bare peptide cannot be swapped for one another.
| Reported observation | Model | Source |
|---|---|---|
| Collagen production went up in skin cell culture when treated with the copper-carrying peptide. This is the study that established the very low concentration range the later work is built on. | human fibroblast culture | Maquart and colleagues, Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+, FEBS Letters (1988) |
| Gene analysis reporting shifts in about 4,000 human genes, roughly 31% of those looked at, with about 59% turned up and 41% turned down. It also reviews the repair and protective activity described across the earlier work. | review of gene-expression datasets | Pickart and Margolina, Regenerative and Protective Actions of the GHK-Cu Peptide in the Light of the New Gene Data, International Journal of Molecular Sciences 19(7):1987 (2018) |
| Human skin cells were treated with the copper peptide at three concentrations. Two collagen-breaking enzymes rose at the lowest concentration and their natural inhibitor rose at all three, so the breakers and the brakes moved together rather than in opposite directions. | human dermal fibroblast culture, 0.01-100 nM | Badenhorst, Svirskis, Merrilees, Bolke and Wu, Effects of GHK-Cu on MMP and TIMP Expression, Journal of Aging Science 4:166, doi:10.4172/2329-8847.1000166 (2016) |
Open questions. Almost all of the measured work is cells in a dish and rodents. The 4,000-gene figure gets quoted as though it were a mechanism, but shifting 4,000 genes describes how wide the effect is without explaining how it happens, and the direction differs gene by gene. How the copper gets delivered is its own variable: the bare peptide, the copper-carrying form and copper on its own are three different treatments, and results from one do not carry to another.
Each row above describes an observation in the stated model. None of it describes what GHK-Cu would do in a person or an animal outside that model, and none of it is a recommendation to use it for anything.
How to store GHK-Cu: refrigeration and shelf life
Keep the sealed vial cold and out of the light and it stays as it left the lab. Once it is mixed into a solution, how long it holds up depends on the compound, what it was mixed with, how strong the solution is and how cold it is kept — too many variables for anyone to print one shelf life on a label. So laboratories write the date on whatever they prepare and keep their own record of it.
For solution preparation arithmetic on the bench, concentration, per-graduation values and molarity, use the vial concentration calculator, which opens with the GHK-Cu sizes stocked here already loaded. It covers laboratory measurement only and contains no administration guidance.
