Check a peptide lab report before you trust the vial.
A certificate proves nothing until it resolves against the lab that issued it. Free tools for checking a report, seeing who has published one, and doing the reconstitution maths.
Janoshik format check
Runs in your browserGo straight to the lab's copy
Two values sit on every genuine Janoshik report. Enter them once and we hand them to the lab's own form; the answer is theirs, not ours.
Tests accumulated
Names listing
Most by one lister
Last captured
Verification
How to verify a peptide COA
Every genuine Janoshik report carries a task number and a unique key. Enter both at janoshik.com/verification/ and the lab returns the report it issued. If the compound, quantity or date does not match what you were sold, the certificate belongs to a different sample. A report with either value cropped out cannot be checked at all.
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Find both values on the report
A task number of five or six digits, and a unique key of twelve letters and digits. If a seller sends a certificate with either one cropped out, that is your answer.
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Send them to the lab
Only janoshik.com/verification/ can say whether the report exists. Our field carries both values over to it, so you type them once rather than twice.
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Read what came back, carefully
Match the compound, the quantity and the date against what you were sold. A real report for a different product is the most common trick there is.
Report anatomy
Format, not a specimenThe ledger
Who has actually paid for testing
Janoshik displays a rolling archive of the reports it has issued, along with the name whoever paid for the test asked to have printed on it. We track what it shows and group it by that name. It is the closest thing to a public record of who is willing to pay for testing, and it is not a recommendation.
of the 80 names captured from the archive have published exactly one report. A single test on a single batch is the most common thing a lister has ever done.
- 01longevity pro's25
- 02INNOPEPTIDE12
- 03info@peptidegurus.com7
- 04ma@qianyecao.cn7
- 05vesuhealtheva@gmail.com7
- 06Yiwu Aozuo Trading Firm6
- 07MEI-PEPTIDE5
- 08HPEBIO4
- 09rachel.uwa.usa@gmail.com4
- 10RETA-PEPTIDE4
- 11SH Petitde Ltd4
- 12Anonymous3
The other 68 names account for 113 reports between them, and are listed in full on the ledger page.
201 tests from 80 listers, accumulated from public.janoshik.com's rolling window across 2 captures, 2026-08-29 to 2026-08-30. Spellings that differ only in case or spacing are counted as one name; anything else is left exactly as it was submitted.
Limits
What a verified report does and does not prove
Verification is a strong signal about one sample on one day. It is routinely sold as more than that, so it is worth being precise about the edges.
It does establish
- The lab issued this report, and the numbers on your copy have not been altered.
- The sample the lab received contained what the report says, at the purity stated.
- Someone paid for testing, which is a cost most sellers of nothing will not carry.
It does not establish
- That the vial you were shipped came from the batch that was tested.
- That the seller listing the report is the party who submitted the sample.
- That the product is sterile, correctly dosed, or safe to put in a human.
Pricing
What testing costs
Per sample, before shipping. Useful for judging whether a seller's report library was expensive to build or nearly free.
| Test | Price |
|---|---|
| BPC-157 analysis | $215 |
| BPC-157 / TB-500 blend analysis | $320 |
| Common GLP-1 blind test (semaglutide, tirzepatide, retatrutide) | $360 |
| Typical single-peptide analysis (GHK-Cu, MOTS-c, cagrilintide, most others) | $450 |
| Human growth hormone panel (amount, purity, dimer) | $500 |
| CagriSema blend analysis | $630 |
Compare methods and turnaround on the testing labs page.
FAQ
Common questions
Can I verify a report without the unique key?+
No. The task number alone tells you nothing, and a seller who supplies only the number has given you a report you cannot check. Some reports are findable in the public archive by task number, which is worth trying, but the key is what proves the copy in front of you is unmodified.
Does being in your ledger mean a seller is trustworthy?+
It does not, and the ledger says so on the page. It mirrors who has published a report in the public archive, with names copied exactly as they were submitted. Anyone can pay for one test on one good batch. Treat the ledger as a starting list of names to check, never as a recommendation.
Why does the calculator want the dose in milligrams?+
Because units are a property of your syringe, not of the drug. The same 2mg is a different number of units on a 0.3mL and a 1mL U-100 syringe, so a dose described in units is only meaningful to whoever owns that exact syringe. Milligrams in, units out, arithmetic shown.
Do you sell peptides or take commission from sellers?+
We do not sell peptides, and no link on this site earns a commission today. If one ever does, the link itself will be marked as paid where it appears, rather than mentioned once in a policy nobody reads.