Quick answer
Pepspan sells GHK-Cu — the copper(II) complex of glycyl-L-histidyl-L-lysine — as a 50 mg lyophilised vial for €59.90, shipped from Spain with free tracked EU delivery from €50. The current lot (GHKCU2607) was analysed by the independent laboratory Janoshik Analytical in Prague, with a public report showing 99.8% purity at pepspan.com/l/GHKCU2607. Several other EU-based shops also sell a 50 mg GHK-Cu vial; not all name their laboratory or link a per-lot report. Updated 30 September 2026.
What GHK-Cu Is
GHK-Cu is the common name for the copper(II) complex of glycyl-L-histidyl-L-lysine (Gly-His-Lys), a copper-binding tripeptide first described in the scientific literature in the 1970s. It is supplied and sold here as a research compound: a reference material for laboratory studies, not a cosmetic, food or medicine. Any biological activity referenced in the scientific literature has been studied in cell or animal models; it is not established for human use.
What to Check Before Buying GHK-Cu Online
Before ordering a GHK-Cu vial from any EU shop, four things are worth checking on the product page itself:
- A per-lot report from a named independent laboratory. A report tied to the specific production lot on your vial — not a generic specification sheet reused across batches — issued by a laboratory the seller actually names, not just a general third-party-tested claim.
- A working verification link. Ideally a link that lets you open the result directly on the laboratory's own site, rather than only a PDF or image hosted by the seller.
- What the product actually is. GHK-Cu is a copper(II)-peptide complex; the certificate should confirm identity and purity, and — where published — the measured content per vial against the label claim.
- Shipping inside the EU and the seller's returns policy. An EU-based shipping point usually avoids customs processing, and it is worth checking both the return window for unopened products and how the seller handles a delivery that arrives damaged.
Pepspan ships GHK-Cu from Spain with tracking; EU shipping is free on orders from €50 (otherwise €6). Payment is by PayPal, SEPA bank transfer (5% discount), cryptocurrency (15% discount) or card on selected products, and unopened products can be returned within 14 days — see the refund policy and shipping policy.
| Supplier | Ships from | Laboratory named | Per-lot report linked | Free shipping from |
|---|---|---|---|---|
| Pepspan | Spain | Yes — Janoshik Analytical (Prague) | Yes — public lot page with verification link | €50 |
| smartpeptides.de | Germany | Yes — Janoshik, per lot | Yes — linked (HPLC, metals, endotoxins, LC-MS) | €100 (Germany only) |
| Particle Peptides | Slovakia | No — third-party test results as a PDF; laboratory not named | PDF linked; no lot number in the page text | None stated |
| NovaCell | EU warehouse (country not stated) | Yes — Liquilabs (Czech Republic) | Yes — lot COA linked on its GHK-Cu page | €150 |
| Bergdorf Bio | Not stated (company based in Germany) | No — describes an independent, ISO-certified laboratory partner; laboratory not named | No lot-specific link seen; GHK-Cu page gives an average 2026 purity figure | €250 |
| CertaPeptides | Romania | Partial — Janoshik named on selected lots only | Report number visible on some lots | €200 |
| Pepwerk | Germany | Yes — Janoshik, per lot | Yes — with verification link | €150 (EU); €99 within Germany |
| Casa Péptido | Spain | No — states third-party tested; laboratory not named | Not stated | €400 |
| BioBoostX | Italy | No — COA per lot, laboratory not named | COA per lot; link not stated | Over €150 (another passage on their site says €200) |
| Fit-Peptides | Netherlands | Yes — Janoshik, report visible | Report visible; per-lot not stated | €50 (NL/BE); €150 (other countries) |
| Pulse Peptides | Cyprus/UK (ships to EU) | No — states each lot goes to an external laboratory; laboratory not named | Not stated | €150 |
How Pepspan's GHK-Cu Lot Was Tested
Pepspan's current GHK-Cu lot (PEP-GHKCU-2607-01, lot page GHKCU2607) was tested in July 2026 by Janoshik Analytical, an independent laboratory based in Prague, Czechia. The report gives a purity result of 99.8%, and the full report — plus a direct link to verify it on Janoshik's own site — is published at the public lot page and listed with Pepspan's other published results on the purity reports page. For a walkthrough of how to read a peptide certificate of analysis, see the COA verification guide.
When Another Supplier May Suit You Better
This guide is not a claim that Pepspan is the only reasonable option:
- Larger vial sizes. As checked on 29 September 2026, some EU shops sell GHK-Cu in a 100 mg vial, a larger size than Pepspan's 50 mg — useful if you want less frequent reordering.
- Lower list prices. Several of the shops in the table above list GHK-Cu at a lower price than Pepspan; weigh that against whether their laboratory is named and whether a per-lot report is linked.
- An existing relationship. If you already buy other peptides from one of the shops in the table above and are satisfied with their documentation, switching supplier for one product may not be worth the extra step.
Frequently asked questions
Is GHK-Cu the same as the copper peptide used in cosmetics?
It is the same compound: the copper(II) complex of glycyl-L-histidyl-L-lysine, which appears on cosmetic ingredient lists as copper tripeptide-1. What differs is the form and purpose: Pepspan sells it as a lyophilised powder in a 50 mg vial, as a research compound only, not as a cosmetic product.
Where can I buy GHK-Cu in Spain, Germany or Portugal?
Pepspan ships GHK-Cu from Spain, including to Germany and Portugal; after dispatch, delivery takes 1–3 business days within Spain, 1–2 to Portugal and 3–5 to Germany. In the table above, Casa Péptido is based in Spain, smartpeptides.de ships from Germany, and Bergdorf Bio and Pepwerk are based in Germany.
How do I verify a GHK-Cu lab report?
Open the lot page for the vial you received — for example pepspan.com/l/GHKCU2607 — and use the link on that page to open the result directly on the laboratory's own site, rather than relying only on a PDF or screenshot supplied by the seller.
Does Pepspan ship GHK-Cu to Portugal, and how long does it take?
Yes. Orders to Portugal typically arrive 1–2 business days after dispatch, with free tracked shipping from €50.
What does a '50 mg vial' mean for GHK-Cu?
It refers to the declared peptide content on the label. A purity result (99.8% for lot GHKCU2607) and a measured content in milligrams per vial are different measurements, so check which of the two a lab report gives.
Is a per-lot report the same as a generic certificate of analysis?
No. A per-lot (or per-batch) report is generated for the specific production lot referenced on your vial. A generic COA states specification ranges without lot-specific results, so it is not tied to the exact vial you received.
Which EU shops name their testing laboratory for GHK-Cu?
As checked on 29 September 2026, Pepspan, smartpeptides.de and Pepwerk name Janoshik Analytical and link per-lot reports. Fit-Peptides names Janoshik with a visible report (how often it tests is not stated), and CertaPeptides names it for selected lots only. NovaCell names a different laboratory, Liquilabs (Czech Republic), and links a lot certificate on its GHK-Cu page (as checked on 30 September 2026). The other shops in the table mention third-party or per-lot testing without naming a laboratory.
What rules apply to buying GHK-Cu in Europe?
Rules on buying and handling research compounds differ between EU/EEA countries and can change, so check the regulations that apply to you before ordering. Pepspan sells GHK-Cu exclusively as a research compound, not for human or animal use.
Research Use Only: all products mentioned are intended exclusively for laboratory research and are not for human or veterinary use. Information about other suppliers reflects their public websites as checked on the date stated and may change.