Peptide testing in the UK and Europe: labs, what each one tests and how to send samples

Peptide testing labs in Europe and the UK at a glance

These are the labs that served European peptide buyers when we checked in September 2026, with what each one’s own site states.

Lab (country)	Peptide tests listed	Published turnaround	How you check a report
Janoshik (Czech Republic)	HPLC mg per vial and purity; blind GLP-1 test; endotoxin (LAL); microbial count (TAMC, TYMC) listed as sterility; TFA analysis and an LC-MS contamination screen as add-ons	Average 7 business days; sterility (TAMC, TYMC) 14 days	Task number and key, QR code
Liquilabs (Czech Republic)	HPLC-UV or HPLC-MS content and purity; endotoxin; bioburden; residual solvents including TFA	Not published	Link on the report to a PDF on the lab’s server
Analiza Białek (Poland)	HPLC-DAD identity and content; also steroids and SARMs	5 to 7 working days, depending on the page	Order number and password
Uzorak (Croatia)	HPLC-UV mass and purity; high-resolution LC-MS package; endotoxin (chromogenic LAL)	2–5 working days	Sample ID lookup
SIMEC AG (Switzerland)	Steroid analysis on its site; ask about peptides	5–10 working days	Email a scan of the report to the lab
PeptideVerify (UK)	HPLC purity; HPLC with LC-MS identity; LAL endotoxin when available	5–7 business days; express 3–5	QR code and reference, public lookup

Janoshik in Prague

Janoshik is a Prague company that tests about 80 peptides by HPLC. Its standard result is mg per vial plus purity, from one whole unopened vial or 30 mg of raw powder. The average turnaround is 7 business days. A blind GLP-1 test reports which of semaglutide, tirzepatide or retatrutide is present, or a mixture.

Its endotoxin test is LAL, reported in EU per vial, and its page prefers a separate vial. What Janoshik lists as sterility testing is a microbial count: total aerobic microbial count (TAMC) and total combined yeasts and moulds count (TYMC), reported pass or fail, with a 14-day turnaround. A microbial count is a different method from the USP <71> sterility test, so check which method a report names. Reports carry a task number and a key for the verification page, which shows a photo of the vial. Clients can ask for a report to be listed in its public database. See our Janoshik review for detail.

Other labs in Europe: Czech Republic, Poland, Croatia and Switzerland

Liquilabs (Czech Republic) is a business-to-business lab. Its peptide pages list content and purity by HPLC-UV or HPLC-MS, high-sensitivity endotoxin, bioburden and by-products such as residual solvents, and it quotes each job individually. It lists no sterility test and publishes no turnaround. Peptigrity counted 248 Liquilabs certificates from 7 shops.

Analiza Białek in Wrocław, Poland, runs HPLC-DAD identity and content tests on peptides, proteins, hGH, steroids and SARMs. The site is in Polish only. Reports show a photo of the sample and the chromatogram, and anyone with the order number and the password printed on the report can open it online. Its pages state 5 or 7 working days in different places. Peptigrity calls it the second-most active EU peptide testing service after Janoshik, with 154 certificates. Our Analiza Białek review has more.

Uzorak names Stamper Lab d.o.o. in Zagreb as the lab, and its terms say it coordinates with partner laboratories. Its standard test is HPLC-UV purity with an external-standard mass. A separate package adds high-resolution LC-MS identity in ppm and impurity identification. Endotoxin is chromogenic LAL in EU per vial, and the pricing page gives 2 to 5 working days for the standard test.

SIMEC AG in Oftringen, Switzerland, holds ISO/IEC 17025 accreditation (SAS STS 0443) with a flexible scope for its own HPLC and GC methods. Steroid and peptide work is not named in that scope. Its site lists steroid analysis but not peptides, so ask before you send.

Lab4Tox in Wrocław is a toxicology lab that lists identification tests for anabolic steroids, SARMs and biologically active peptides. It offers them to private persons and takes samples by post from across Poland. Axiom Analytics in the Czech Republic no longer takes orders. Its notice gives 1 October 2026 as the end of its analytical services and says existing reports stay verifiable.

Peptide testing in the UK

PeptideVerify is run by Verify Analytik Ltd, a London company incorporated in March 2026. You post the sample to its UK partner laboratory. The menu is HPLC purity alone, or HPLC with LC-MS identity, with a standard turnaround of 5 to 7 business days and an express LC-MS option of 3 to 5. Its LAL endotoxin test was paused for calibration in September 2026; its pricing page now asks you to check availability before you send a sample. Certificates carry a QR code and a reference you can look up.

For any other test, UK buyers mail vials abroad. A parcel from the UK to an EU lab crosses a customs border, so it needs a declaration. Describe the contents accurately and follow the courier’s rules. We found no free testing service for UK buyers: Finnrick, which runs free community testing, does not accept shipments from outside the US. Our guide to free peptide testing explains who pays for free tests.

Germany, the Netherlands, Ireland and the rest of the EU

Our scan found no peptide lab marketing to buyers in Germany, the Netherlands or Ireland. Large contract labs work in these countries, but we found none that markets peptide tests to individual buyers. Buyers there send vials to the labs above, or outside Europe. A parcel to Prague, Wrocław or Zagreb stays inside the EU customs union, which keeps the paperwork short. Switzerland and the UK are outside it, so a parcel to SIMEC or PeptideVerify needs a customs declaration.

What to check in a European report

Labs here measure different things under similar names. Three checks help:

1. Identity. Check whether the report gives a mass result (LC-MS, high-resolution MS) or only an HPLC retention time. Our identity test page explains why mass is the direct check.
2. Sterility. A microbial count (TAMC, TYMC) reported pass or fail is a different method from the 14-day USP <71> sterility test. Our guide to sterility testing compares the methods.
3. Endotoxin units. EU per vial gives the total in that vial. EU per mg relates it to the peptide content, so you can compare vials of different strengths. See the endotoxin test.

Of the labs in the table, SIMEC is the only one whose site gives an ISO/IEC 17025 accreditation number, and its scope does not name peptides. Our guide to ISO/IEC 17025 in peptide testing explains what a scope covers. We do not hold ISO/IEC 17025 accreditation.

Sending samples abroad from Europe

Janoshik, Analiza Białek, Uzorak and PeptideVerify take samples by post. Analiza Białek’s pages do not say whether it takes parcels from outside Poland, so check before you send. Ask the lab for its sample requirements first, keep vials sealed, ship with tracking and keep a copy of the paperwork. Our guide on how to send peptides for testing covers packing and labels.

What HK Analytical does for European buyers

Our standard test confirms identity by LC-MS and reports purity by HPLC and content per vial in mg. Any mix of blind GLP-1 identification, endotoxin (LAL), Sterility (USP <71>, 14 days), residual solvents, counter-ion, water content and vial-to-vial consistency can go in one order. Results within days of receipt. Sterility (USP <71>, 14 days) is the one test that takes 14 days, because the method incubates for 14 days.

Every number comes with its raw data. Each report is a signed record with the lab’s own photo of the vial as received, and anyone with its private link can check it at hkanalytical.com/verify. Our reply to a quote request lists the vials to send and the address, and the custody form goes in the parcel.