Every Peptsche lot is independently tested by Janoshik. This page lists the Janoshik reports we have published, by product and lot. Each report is a peptide COA (certificate of analysis), and every result is shown exactly as the lab printed it.
What Janoshik is. Janoshik Analytical is an independent analytical lab. It tests samples sent in by clients and issues a numbered report for each test, which can be checked on the lab's own website.
What our reports show. Each test gets its own report. A content and purity report lists the amount of each compound the lab measured in the sample, in mg, plus a purity result in % when the report includes one. A blend report lists the measured amount of each component. A mass result appears only when mass spectrometry is part of the test.
How to check a report. Go to janoshik.com/verification/, enter the Task Number and the unique key printed at the bottom of the report, and compare the lab's copy with ours.
Spotting the official domain. Janoshik's verification form is on janoshik.com, and its report pages are on verify.janoshik.com. Always check the address bar: a look-alike spelling is not the lab.
What a report covers. A report covers only the sample tested and only the tests listed on it. It applies to the lot printed in its Batch field, not to other lots.
Latest published report per product
| Product | Latest reported lot | Test date | Reports |
|---|---|---|---|
| BPC-157 | Lot 2L8886 | BPC-157 lab reports | |
| CJC-1295 + Ipamorelin | Lot R8X8S3 | CJC-1295 + Ipamorelin lab reports | |
| GHK-Cu | Lot X88328 | GHK-Cu lab reports | |
| MOTS-c | Lot 8338N8 | MOTS-c lab reports | |
| PT-141 | Lot W88K93 | PT-141 lab reports | |
| Retatrutide | Lot J88855 | Retatrutide lab reports | |
| Tesamorelin | Lot Z86832 | Tesamorelin lab reports | |
| Tirzepatide | Lot B38868 | Tirzepatide lab reports | |
| Wolverine Blend | Lot 8T8A88 | Wolverine Blend lab reports |
What each field means
- Product: the Peptsche product the report belongs to.
- Lot: the batch code printed in the report's Batch field.
- Janoshik task number: the report's own number, used with the unique key to verify it.
- Test type: Content + purity or Blend content.
- Sample: the sample name as submitted to the lab, for example "BPC157 10mg".
- Measured content: the amount of each listed compound found in the sample, in mg.
- Purity: the purity result in %, as printed. Blend reports don't list one.
- Testing ordered, Sample received, Analysis conducted: the three dates printed on the report (shown as YYYY-MM-DD).
- View report: opens the lab's page for this report on verify.janoshik.com.
- Verify at lab: opens janoshik.com/verification/. Enter the task number and unique key shown next to the link.
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For research use only. Not for human or veterinary use.