Research-grade GHK-Cu for laboratory use in Ireland — the copper-binding tripeptide glycyl-L-histidyl-L-lysine, supplied lyophilised in a 50 mg vial and specified to a ≥99% purity target. Dispatched tracked from Ireland within 1–2 working days. Supplied strictly for laboratory research use.

Every figure below is the specification for the vial you receive. Prices match our live catalogue exactly.
| Compound | GHK-Cu — copper(II) complex of glycyl-L-histidyl-L-lysine (Gly-His-Lys-Cu) |
| Molecular formula | C14H22CuN6O4 |
| Format | Lyophilised (freeze-dried) powder, lot-tracked |
| Vial size | 50 mg per vial |
| Purity | Specified to a ≥99% purity target; produced by solid-phase peptide synthesis and purified by reverse-phase HPLC |
| Verification | Independent testing not yet published; each lot's Certificate of Analysis (Janoshik Analytical, independent third-party lab) publishes as it completes |
| Price | €40.00 per 50 mg vial |
| Availability | In stock — dispatched from Ireland within 1–2 working days |
| Intended use | Laboratory research use only. Not for human consumption, diagnostic or therapeutic use. |
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Dispatched from Ireland within 1–2 working days and sent tracked by courier. Domestic delivery is typically the fastest option.
Every vial is lot-tracked, so it traces back to its batch. Our testing partner is Janoshik Analytical, an independent third-party lab; independent results are not yet published, and each lot's Certificate of Analysis will publish on our COA page as testing completes.
Every order is packed plainly and discreetly, with no product details on the outside of the parcel.
Everything you need to complete an order to an Irish address — and how to reach us if you have a question first.
Dispatch: within 1–2 working days of payment clearing.
Carrier: tracked courier; tracking sent by email or WhatsApp once it's on its way.
Cost: flat €9.95 — free on orders of €150 or more. Full detail on our shipping page.
Pay by Bank · save 3% Instant, secure SEPA bank transfer — the recommended, fastest way to get your order dispatched.
Card · coming soon Visa, Mastercard, Apple Pay and Google Pay are on the way.
New customers: FIRST10 takes 10% off your first order at the cart.
Questions about the batch, documentation or your order? We answer fast.
Email: research@powerfullypeptides.com
Phone / WhatsApp: +353 83 308 6196 · or the contact page.
A strictly descriptive summary of what published reviews study — not a claim of any benefit, effect or outcome. GHK-Cu is supplied here solely as a laboratory reagent.
GHK-Cu is the copper(II) complex of the human tripeptide glycyl-L-histidyl-L-lysine (GHK). The reviews describe GHK as occurring naturally in human plasma, with reported levels declining with age, and note that it binds copper(II) with high affinity to form GHK-Cu — the copper complex that most of the research examines (Pickart, 2008).
Published reviews concentrate the GHK-Cu literature around skin and connective-tissue research: the synthesis and breakdown of collagen and glycosaminoglycans, and the activity of matrix metalloproteinases and their inhibitors, studied in cell and tissue models (Pickart, Vasquez-Soltero & Margolina, 2015). A later review re-examines the peptide against gene-expression data, describing broad modulation of gene pathways in cultured cells (Pickart & Margolina, 2018). Throughout, these are laboratory and model-system studies.
Two honest caveats. First, the underlying work is predominantly in vitro and model-system research — a result in cultured cells is not evidence of an effect in a person. Second, a substantial part of the corpus originates with a single research group (Pickart and colleagues), a concentration that reviewers weigh when judging how far the findings generalise. We describe what the literature studies and make no claim about any use in humans.
For laboratory research use only. Not for human, veterinary, diagnostic or therapeutic use. This section summarises published research literature and makes no claim of benefit or outcome for any person. Hold our sourcing to the same standard you would any supplier — see how to verify a supplier and our sourcing & testing policy.
Full research profile, dilution maths, and the rest of the catalogue.
The questions researchers ask before ordering.
GHK-Cu is not a controlled substance in Ireland. We supply it strictly as a research chemical for in-vitro laboratory use only — not for human consumption, diagnostic or therapeutic use. Buyers are responsible for complying with the regulations that apply to their own work, and we make no claims about any use in humans.
GHK-Cu is the copper(II) complex of the human tripeptide glycyl-L-histidyl-L-lysine (Gly-His-Lys). The tripeptide occurs naturally in human plasma and binds copper to form GHK-Cu, the copper complex used in research. We supply it as a lyophilised research reagent specified to a purity target of at least 99 percent, for laboratory use only.
Published reviews concentrate the GHK-Cu literature around skin and connective-tissue research — collagen and glycosaminoglycan turnover and matrix-remodeling enzymes — studied in cell and tissue models, with a 2018 review re-examining it against gene-expression data. These are laboratory and model-system studies; much of the corpus comes from a single research group, and in vitro findings are not evidence of an effect in humans. We describe what the literature studies and make no claim about any use in people.
Orders are prepared and dispatched within 1–2 working days of payment clearing, sent tracked by courier from Ireland. Domestic tracked delivery is typically the fastest option. Shipping is a flat €9.95 and free on orders of €150 or more. See our shipping page for full detail.
Store the lyophilised vial cold or frozen until use, and refrigerate once reconstituted with bacteriostatic water. Keeping vials out of light and heat preserves stability. Store correctly on arrival to keep replacement eligibility valid. Need to work out a dilution? Use the reconstitution calculator.
Our GHK-Cu is specified to a ≥99% purity target, produced by solid-phase peptide synthesis, purified by reverse-phase HPLC, and supplied lyophilised and lot-tracked so every vial traces back to its batch. Independent testing is not yet published — no certificates have been issued yet. Our testing partner is Janoshik Analytical, an independent third-party lab, and each lot's Certificate of Analysis will publish on our COA page as testing completes.
Pay by Bank is the primary method — an instant, secure SEPA bank transfer that saves you 3% on eligible items. Card payment (Visa, Mastercard, Apple Pay, Google Pay) is coming soon. New customers can also use code FIRST10 for 10% off their first order.
Yes — GHK-Cu is discount-eligible. Enter FIRST10 in your cart for 10% off your first order, and choose Pay by Bank to save a further 3% on eligible items.
All products are supplied for laboratory and research purposes only. Nothing on this page is a medical claim, dosage guidance, or an offer of any product for human or veterinary use. For research purposes only. Not for human consumption.