Janoshik tested peptides: the reports and how to verify them

Which Peptara Labs batches are Janoshik tested?

The Retatrutide, Tirzepatide, BPC-157 and GHK-Cu batches, each with its Janoshik report. Every figure in the table is copied from the report it belongs to, and the last column opens Janoshik's own copy of that report.

The reports themselves

Select a report to open our copy at full size. The task number sits at the top, the QR code above the results, and the unique key along the bottom edge.

RetatrutideTask #195512, 4.070 EU/VialTirzepatideTask #195513, <1 EU/VialBPC-157Task #195514, 1.470 EU/VialGHK-CuTask #195511, 1.321 EU/Vial

How do you verify a Janoshik report?

You verify a Janoshik report with Janoshik, not with the seller, and there are two ways in.

1. Scan the QR code or follow the link. Each report prints a QR code above its results. It opens Janoshik's hosted copy of that report on verify.janoshik.com, and the Open on Janoshik links in the table above go to the same addresses.
2. Or type the two codes in. Janoshik's verification page, janoshik.com/verification, asks for the task number printed at the top of the report (the digits after the # sign) and the unique key printed at the bottom.
3. Compare the fields that identify the test. The task number, batch, result, analysis date and key should be the same on Janoshik's copy as on ours. One line differs: their public copy gives the sample description as "Pictures not included", where ours reads "See picture or pictures attached".
4. If a check fails, don't rely on the report. A key that opens nothing, or a copy that doesn't match, is a reason to ask before you trust the document. Message us on WhatsApp or write to hello@peptaralabs.io and we'll look into it.

We checked this on 24 September 2026: each Open on Janoshik link opened the matching report, and the same task number with a wrong key opened no report at all.

What does a Janoshik endotoxin result mean?

It's the amount of bacterial endotoxin Janoshik measured in the whole vial, given in endotoxin units (EU).

Endotoxin is material from the outer membrane of certain bacteria, and it can remain after the bacteria themselves are gone. That is why it has a test of its own: a sterility test looks for living organisms, not for what they leave behind. A lower figure means less endotoxin was measured. The Tirzepatide report gives its result as "<1 EU/Vial", a less-than figure: the amount measured was under that value.

The reports print the measured figure only. None of them carries a pass or fail line, and this page does not add one. A certificate shows what one lot tested as; it does not show a product is safe or approved for use in people.

What does a Janoshik report not cover?

Everything except endotoxin. On these batches Janoshik ran one test, so for what's in the vial and how pure it is, you need the Titreon Analytical certificate for the same batch.

Titreon Analytical's quality system is aligned to ISO/IEC 17025:2017; the laboratory is not itself accredited. Each batch's full certificate is on the certificates page as a PDF.

How do you check a "Janoshik tested" claim from any seller?

Ask for the report, then check it with Janoshik. If there's nothing to check, you only have the seller's word for it.

• The document, not a badge. A logo or the words "Janoshik tested" on a product page are not a report.
• A task number and a key. Without both, or the QR code, there is nothing to look up.
• The test that was run. The report names it under "Tests requested". An endotoxin analysis says nothing about purity, and a purity test says nothing about endotoxin.
• The batch. A report describes the batch printed on it. Ask whether that is the batch you would receive.
• The date. "Analysis conducted" says when the sample was tested, which tells you how old the result is.

The same checks work on any laboratory document. The longer list, including what a full certificate should show, is in how to verify peptide purity.