Research peptides in Ireland: what ships, price in euros, COA per lot

Search « peptides Ireland » and Google returns three kinds of page. Laboratory distributors such as scientificlabs.ie sell reagents, glassware and peptide synthesis kits to universities, with an account and a purchase order.

A handful of small shops with Irish names sell vials of BPC-157 or retatrutide from pages of 150 to 350 words, usually without a lab report for the size you are buying. Then come Reddit threads asking which of those shops is real.

None of the three answers the question a researcher in Cork or Galway actually has: which supplier ships a sealed, tested vial to Ireland, in euros, without a customs surprise.

That is what this page covers, with our own catalogue as the worked example and the checks that apply to any other shop.

Research peptides are not medicinal products in Ireland.

BPC-157, TB-500 or retatrutide powder is not stocked by Irish chemists, and no Irish doctor can order it. They are sold as laboratory reagents, labelled for research, and bought online.

Where a parcel leaves from matters as much as the price on the page.

Since 1 January 2021, goods sent from Great Britain to Ireland are imports: Revenue charges Irish VAT at 23 % on the value plus shipping, customs duty can apply on top, and the carrier adds a handling fee before it hands the parcel over.

A vial from the United States or China goes through the same process, with more time in a depot.

A parcel posted inside the EU crosses no customs border. Ours leave a warehouse in the European Union, in a plain sealed box with a tracking number:

You pay in euros by card with 3-D Secure, without creating an account. A confirmation e-mail arrives at once and a second one with the tracking link when the parcel leaves. The full country list sits on the shipping page.

A vial price alone tells you little, because a 5 mg vial and a 10 mg vial cannot be compared.

Divide the price by the milligrams on the label and compare vials of the same size. On 19 October 2026 we read the retatrutide prices of an Irish-facing shop, peptideslabireland.com, next to ours:

Prices read from the product page before any code, on the day above; they can change the next morning. The per-mg figure also assumes the vial holds what the label says.

A « 10 mg » vial that contains 7 mg is the most expensive vial on the market per real milligram, whatever its sticker. That is why the comparison only makes sense between shops that publish a report with the measured quantity.

In the basket, the price per vial drops on its own from 3 and from 5 vials of the same size.

The size of a vial changes the price per mg more than the shop does. For retatrutide, a milligram costs €8.99/mg in the 10 mg vial and €6.50/mg in the 30 mg one.

A research series that needs a lot of material is cheaper in large vials; a short series wastes less in small ones, because the powder stays lyophilised and stable until the vial is opened.

Unopened vials keep best in a fridge (2 to 8 °C), or a freezer for long storage, away from light and moisture.

On arrival the seal should be intact and the powder dry, as a cake or a fine powder. The guide lyophilized peptides storage covers shelf life in detail.

Retatrutide (LY3437943) is an investigational peptide developed by Eli Lilly. In laboratory models it binds three hormone receptors at once, the two incretin receptors and the glucagon receptor.

It is still in phase 3 studies and has no marketing authorisation from the European Medicines Agency, so the HPRA lists no retatrutide product and no Irish chemist stocks it.

What circulates in Ireland is lyophilised powder sold as a research reagent.

For that powder, the only useful document is a lab report tied to the size you buy. Ours come from Janoshik Analytical.

The full purchase guide, with sizes and storage, is buy retatrutide in Europe; the vials themselves are on the retatrutide 10, 20 and 30 mg page.

We publish nothing about use in people; a shop that does is selling an unauthorised medicinal product.

« GHK-Cu Ireland » brings up two different products.

Irish pharmacies and beauty retailers sell creams and serums that contain a fraction of a percent of copper peptide in a cosmetic base.

A research vial holds the peptide itself: glycyl-L-histidyl-L-lysine bound to a copper ion (Cu²⁺), as a blue lyophilised powder, measured in milligrams.

The two are not interchangeable and not priced the same way. A serum is priced per millilitre of finished product; a vial is priced per milligram of peptide.

Our GHK-Cu 100 mg vial costs €59.90 (€0.60/mg), with Janoshik report 217016 for the lot on sale (99.603 % purity). Its sister peptide is on the AHK-Cu page, and GHK-Cu vs AHK-Cu sets the two side by side.

Bacteriostatic water is sterile water with 0.9 % benzyl alcohol, the preservative that keeps a multi-use vial usable after the first puncture.

Labs keep it to dissolve lyophilised peptides. In Ireland it is hard to find on a shelf: chemists stock plain sterile water without a preservative, and marketplace listings rarely show a lot number or the benzyl alcohol content.

What to check on any vial: the words « bacteriostatic » and « 0.9 % benzyl alcohol », a sealed cap, a lot number and an expiry date printed on the label.

Ours ships in the same parcel as the peptides, so it adds nothing to the shipping cost: see bacteriostatic water and the guide where to buy bacteriostatic water.

Five checks, none of which needs an order:

1. A named lab report per size. A single PDF for the smallest vial, reused for the larger ones, says nothing about the vial you buy.
2. A verifiable report. Janoshik reports carry a task number and a key; typed on janoshik.com, they open the same document as the shop's. If they do not, the report is not genuine.
3. A measured quantity, not only a purity. « 99 % pure » on 7 mg of a « 10 mg » vial is still 7 mg.
4. Dispatch from the EU. Prices in pounds or dollars usually mean customs and VAT at the door.
5. A named company, with a written return policy and card payment. Crypto-only checkout and bank transfers to a private account are warning signs.

Instructions for people, testimonials or promised outcomes on a product page mean the shop is selling a medicinal product without authorisation.

The long version of these checks is how to check a peptide supplier, and every heading of a report is explained in Janoshik test report.

In Ireland, the national regulator, the HPRA, decides what counts as a medicinal product.

A product presented as something to give to people, with an amount to take or a promised outcome, is a medicinal product and needs an authorisation to be sold.

Research peptides have none, which is why they can only be offered as laboratory reagents: labelled « for research use only », described by their chemistry, with no instructions for people or animals.

Every year the HPRA and Revenue detain parcels of unauthorised medicinal products ordered online, most of them from outside the EU.

A reagent sold and labelled as such, from an EU seller, is a different case, but the line is drawn by how the product is presented, not by its name.

Competitors under anti-doping rules should know that the World Anti-Doping Agency lists BPC-157 (class S0) and TB-500 (class S2) as prohibited. This page is not legal advice; each institution's own rules apply to its lab.

For laboratory research only. Not for human or veterinary use.