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Janoshik Analytical

Look it upEvery report has a task number, a unique key and a QR code. You can check all three on the lab's own verification page. There is also a public gallery at public.janoshik.com. A seller chooses whether a result shows up there.
Look a certificate up

44 sellers named this laboratory · newest certificate seen 2026-09-17 · read 2026-10-01

What this page can say

The names below are facts about certificates we opened. They are not a ranking of laboratories against one another, and they carry no HPLC purity score. Seller certificate tier is still the ranking on every price page.

The purity and dose gate is written and off. We do not invent pass or fail from missing certificates of analysis.

Deferred: HPLC scores, a lab quality letter, and turning the purity gate on. Those need quality data we are entitled to use. They are not shipped.

What we read on the laboratory's own site

Czech Republic. Company name Janoshik s.r.o.. We read the details below on 14 September 2026.

  • HPLC for peptide amount and purity
  • Mass spectrometry screening, as a paid extra rather than the default

We read the lab's home, services and verification pages on 14 September 2026. None of them claims an accreditation or a licence.

Published prices and how to ship a vial of your own are on the testing page.

How to check a certificate from Janoshik

A certificate on a seller's site is a file the seller uploaded. A certificate this lab's own website shows you is something else. Take the codes printed on the file and type them in here yourself. Do not follow a link or a QR code printed on the file. A fake certificate carries a fake link.

  1. Find these on the certificate: Task number, for example 233668; Unique key, case sensitive, for example 3UCGA5FQMWI1; or a scan of the QR code printed on the report.
  2. Type the laboratory's address into your browser: https://janoshik.com/verification/
  3. What a real one shows you: A page showing the full report as a picture, with a PNG download. There is also a public list of reports customers paid to make public. Anything else, even a page that loads but shows no report, means the certificate has not been confirmed.

Check page read verify.janoshik.com

What Janoshik discloses

5 of 8 facts we count are published: Documented, 5 of 8. This counts what the lab tells you, never how good a result is.

  • Public report lookuppublished
  • Accreditation body and numbernot published
  • Identity by mass spectrometrynot published
  • Purity by HPLCpublished
  • Net content reportedpublished
  • Endotoxin or sterilitypublished
  • Names the clientnot published
  • Independence statedpublished

Read on Janoshik's own site

Where it is
Prague, registered office Kaprova 42/14. The lab gives out its shipping address only after a customer orders. janoshik.com
Country
Czech Republic janoshik.com
Report lookup
Yes. A verification form takes a task number and a unique key. It opens a page showing the whole report as a picture with a QR code. The report shows the task number, order and arrival dates, customer, sample, maker, batch, tests ordered and results. A separate public list shows the reports customers paid to make public. janoshik.com
Outside approval
None claimed. The about page calls it an independent testing lab with over ten years of experience. It makes no ISO, CLIA, GMP or DEA claim. Outside sources say it is not ISO/IEC 17025 accredited, and that sellers who say otherwise are wrong. janoshik.com
Purity test
HPLC, the standard lab test for purity. Results give milligrams per vial and peptide purity. janoshik.com
Identity test
Not in the standard peptide test. There, identity comes from HPLC. LC-MS, a test that weighs the molecule, is only a paid extra. One extra screens for peptide contamination. Another pairs LC-MS with CHNS analysis for growth hormone fragments. MALDI-TOF is not published. janoshik.com
Amount in the vial
Milligrams per vial, printed next to the purity percentage. verify.janoshik.com
Bacterial toxins
Test for bacterial toxins (endotoxins) as an extra, 180 dollars. janoshik.com
Germ-free test
Sterility testing as an extra, 290 dollars. It is listed as a count of germs, yeast and mould, not the standard USP 71 test. janoshik.com
Heavy metals
Heavy metals check for arsenic, cadmium, lead and mercury, 105 dollars. janoshik.com
Who may submit
Anyone who pays. The lab takes samples from anywhere in the world, accepts card and crypto, and offers anonymous orders. Both sellers and individual people send samples. The customer decides whether a report is made public. janoshik.com
Names the client
Optional. The report has a customer field, but the customer fills it in when ordering. It can say Anonymous, with maker and batch unknown. A paid extra issues more versions of the same report. verify.janoshik.com
Sample tracking
Partial. The terms put shipping risk on the customer. A sample only counts as received once it is checked as usable and confirmed by email. Results are based on the samples and details the customer sends. Nothing says the lab watches how the sample was chosen. janoshik.com
Turnaround
About seven business days on average for the GLP-1 test. The terms promise results within 21 working days of the sample arriving. janoshik.com
Pricing
Published: 360 dollars for the GLP-1 blind test, 500 dollars for growth hormone, 145 dollars for steroid screens. Extras are priced one by one. janoshik.com
Independence
Owner stated. It names an owner and chief executive, a chief science officer and a managing director. It calls itself an independent testing lab. Its public list says it has no ties to the companies shown in it. janoshik.com

Report numbers look like this: a task number such as 233668 plus a case sensitive unique key such as 3UCGA5FQMWI1

Disputes and open questions

These are disputes, not proven facts. Each is what a named source reported, with the link so you can read it and decide.

  • Fake Janoshik certificates. One seller took the key and QR code off a real bacteriostatic water report and put them on a different product. A second report's key did not work. peptidegrades.com
  • A data breach in early February 2026 leaked customer contact, order, shipping and report details. A blackmail attempt followed. chemverify.com
  • Claims of wrong results. In one, a batch read about 15 percent low. The lab blamed an assistant's mistake. There is also a disputed claim about a sample that did not arrive. peptideprotocolwiki.com
  • One vial was issued as several reports under different brand names, using a paid extra that changes the customer name. That can make it look like separate tests. krysia0430.substack.com
  • Seller websites call Janoshik ISO 17025 accredited. The lab does not claim that. peppal.app

Our notes

  • A forum post in February 2026 said the verification page confirmed a report but showed it blank. glp1forum.com

Sellers who published this name

44 stores · lab-confirmed 0 · tier A 33 · tier B 11 · tier C 0. The letter is the seller's certificate, not a grade of this laboratory.

  • Ameano Peptides

    ameanopeptidesofficial.com · 2026-05-15

    A
  • Amino Tech

    aminotech.shop · 2026-06-01

    A
  • Apex Amino

    apexamino.com · 2026-07-28

    A
  • CertaPeptides

    certapeptides.com · 2026-09-17

    A
  • Core Research Peptides

    coreresearchpeptides.com · 2026-06-16

    A
  • Critical Peptides

    criticalpeptides.com · 2025-12-19

    A
  • EZ Peptides

    ezpeptides.com · 2026-06-10

    A
  • GenPeptide

    genpeptide.com · 2026-08-20

    A
  • Honest Peptide

    honestpeptide.com · 2026-06-29

    A
  • Hydro Research

    hydroresearchpeptides.com · 2026-08-24

    A
  • HYTE Research Division

    hyteresearchdivision.com · 2026-08-18

    A
  • Ignite Peptides

    ignitepeptides.com · 2026-05-11

    A
  • Injectify US

    us.injectify.is · 2026-01-08

    A
  • Lab Trust Peptides

    labtrustpeptides.com · 2026-08-23

    A
  • Longevity Pro Labs

    longevityprolabs.com · 2026-06-26

    A
  • Molecular Solutions

    mspeptides.com · 2026-02-18

    A
  • MyPurePeptide

    mypurepeptide.com · 2026-08-04

    A
  • NexXGeN Peptides

    nexxgenpeptides.com · 2025-12-01

    A
  • Omega X Labs

    omegaxlabs.com · 2026-06-25

    A
  • Panda Peptides

    pandapeptides.com · 2026-09-16

    A
  • PeptiAtlas

    peptiatlas.com · 2026-04-14

    A
  • Peptide Crafters

    peptidecrafters.com · 2026-08-26

    A
  • Peptide Powerhouse

    peptidepowerhouse.com · 2025-11-15

    A
  • Prime Peptides

    primepeptides.co · 2026-09-03

    A
  • Purus Peptides

    puruspeptides.com · 2026-08-25

    A
  • QSC Peptides

    qsc-usa.com · 2026-08-03

    A
  • Restore Peptides

    restorepeptides.io · 2026-02-09

    A
  • Skye Peptides

    skyepeptides.com · 2026-02-20

    A
  • Spartan BioLabs

    spartanbiolab.com · 2026-04-01

    A
  • SwissChems

    swisschems.is · 2026-09-13

    A
  • The Peptides Collective

    peptidescollective.com · 2026-07-31

    A
  • VPeptide

    vpeptide.com · 2026-08-10

    A
  • Xcel Peptides

    xcelpeptides.com · 2025-11-04

    A
  • Apollo Peptide Sciences

    apollopeptidesciences.com · 2025-10-02

    B
  • ARG Peptides

    argpeptides.com · 2026-05-29

    B
  • Better Nak'd Aminos

    betternakdaminos.com · 2025-08-23

    B
  • Double R Labs

    doublerlabs.is

    B
  • Genoscience

    genoscience.net · 2026-01-12

    B
  • Peptide Research Hub

    peptideresearchhub.com · 2026-04-13

    B
  • Peptides Please

    peptidesplease.com · 2025-05-14

    B
  • Peptides World

    peptidesworld.com · 2023-10-30

    B
  • Peptides.com

    peptides.com · 2026-06-28

    B
  • Pure Tested Peptides

    puretestedpeptides.com · 2025-08-21

    B
  • Red Rock Peptides

    redrockpeptides.com · 2025-10-29

    B

We never charge for knowledge. No vendor has a say in what a page says. Sellers are ranked by the certificate they publish, then by price. Every laboratory named · Every seller · Get a vial tested.