Independent labs: why Janoshik and Freedom
· Novatheris
Anyone can print a good-looking certificate. The useful question is a different one: who ran the measurement, and where can it be verified?
We send our batches to two independent labs, Janoshik and Freedom Diagnostics Testing. Neither one manufactures or sells peptides. They receive the vial, measure it and publish the report on their own page, with a key you can look up yourself.
What "independent" means
It means the lab has nothing to gain from the result.
A manufacturer's certificate is the manufacturer grading its own work. It can be perfectly well done, but the incentive is bent from birth: whoever makes the product also assigns the grade.
A third party measures the same vial with the same instrumental principles and does not sell the product. If it comes out well, the vial wins. If it comes out badly, the lab loses exactly nothing. That is the whole difference.
And the report does not live on our page
This is the part that makes the system verifiable.
A report published in the store does not prove much on its own: it is an image file. What makes it checkable is that the same document can be pulled from the lab's page, with a key we do not control.
Janoshik reports carry the printed line "Verify this test at www.janoshik.com/verify/" and a unique key per document. Freedom reports are looked up by "search code", four client letters plus the accession number. Ours run from NOVA2609150051 to NOVA2609150055.
You enter the code, the report comes up. If it does not come up, something is wrong, and that is information too.
It is worth doing once, even out of curiosity. The point of the whole setup is that you never have to take our word for the number on the page.
Freedom Diagnostics Testing
They are at 133 Holiday Ct Suite 106, Franklin, Tennessee, United States, and on their site they present themselves as a US-owned and operated outfit.
Their document is a long, very visual Certificate of Analysis. It carries a photo of the vials received, client data, accession number, search code, received and reported dates, batch, sample summary and analytical results.
The method stated on the report is "HPLC with UV detection coupled with mass spectrometry (LC-MS)". In plain words: the sample is separated by HPLC and an ultraviolet detector measures purity, while mass spectrometry confirms identity by weighing the molecule.
Each certificate reports three things: identity by LC-MS, purity by HPLC-UV and net content, meaning how many milligrams are really there. And it does not leave it at numbers: it prints the chromatogram, the graph of peaks where the separation is visible, and the mass confirmation. The principal chemist signs it.
Turnaround is short. On our certificate NOVA2609150054, the sample was received on September 15, 2026 and the report came out on the 16th. One day.
Janoshik
Their format is different on purpose, and that helps.
Janoshik issues a separate Test Report for each test. For the Tirzepatide 30 mg from batch NVT-TZ30-0626-01 there are three documents: #123821 for purity, #123822 for endotoxins and #123823 for heavy metals. For the Retatrutide from batch NVT-RT24-0626-01, #123824, 25 and 26.
Each report carries a task number, order, receipt and analysis dates, client, sample, manufacturer, the batch matching our own batch code, the test requested, the results table, comments, signature and the verification key.
The results for that Tirzepatide batch: 35.48 mg of content at 99.678 % purity, under 1 EU of endotoxin per vial, and arsenic, cadmium, lead and mercury reported as "not detected". The lab's contact is printed on the document itself, info@janoshik.com.
The blind test, the detail we like most
The purity test we order from Janoshik is not just any test. On report #123821 it appears as "Common GLP-1 peptide blind test (Semaglutide, Tirzepatide and Retatrutide)".
Blind means the lab is not told in advance which of the three compounds it is analyzing. It has to identify it on its own, on top of measuring quantity and purity.
That is a big difference from sending a sample and saying "this is tirzepatide, confirm it." A test set up that way is halfway to its own answer. If the vial were not what we say it is, the blind report would say so, and we would rather find that out from a lab than from a customer.
Why two labs and not one
Because two different formats, with different methods and in different countries, are far harder to fabricate than one.
Also because each one covers different angles. Freedom delivers identity, purity and net content in a single certificate with the graphs printed. Janoshik separates purity, endotoxins and metals into individual documents, so a purity report of theirs makes no claim about endotoxins.
That point is worth holding on to when reading any report: a purity document covers purity. Nothing more, no matter how official the page looks.
Sample handling counts too
An analysis is valid for the sample that was analyzed, not for a general idea of the product.
The FDA's own guidance on endotoxin testing warns that sample storage and handling affect what gets detected, and requires that assays be validated and that out-of-specification results be investigated.
That is why every shipment to the lab is handled for what it is: material that has to arrive in the same condition it left in, so the report speaks about the batch and not about the trip.
What the reports cover today
Not all of our peptides have a published third-party analysis yet, and we would rather say so before you ask.
Today there are reports for Tirzepatide 30 mg, Retatrutide 24 and 20 mg, KLOW, Wolverine (BPC-157 with TB-500), Tesamorelin and MOTS-c. The rest show the "+99.5 %" seal, which is the brand standard, with no report of their own batch.
We never show another dose's report, or another batch's, as if it were yours. Each report belongs to one batch and to no other.
What a report does not say
It says nothing about effects, safety or use in people. It measures chemistry.
The legal footer on the Freedom certificate puts it in one line: the peptides tested are for research use only and are not approved for human or veterinary use, diagnostic, therapeutic or clinical applications. We are not going to say more than that.
If you want to check it yourself, look up your vial's batch code on the verification screen and take the key from there to the lab's page.