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How to read a lab report

A lab report tells you what's really in the vial. Here's our Retatrutide 10 mg report from Janoshik, an independent lab, explained in plain words.

TEST REPORTJanoshik Analytical
Task number#2033571
ClientPeptique.ae2
SampleRetatrutide 10mg3
BatchRT10-JUL264
Tests requestedCommon GLP-1 peptide blind test5
Results6
Retatrutide11.13 mg
Purity99.888%
Verification keyG5GU1VF9H9BX7
Analysed: 16 Jul 2026janoshik.com/verify
Simplified view of Janoshik report #203357 · Open the original report
  1. 1

    Report number

    The report's ID. You use it to check the report is real.

  2. 2

    Who sent it

    It should be the shop you're buying from.

  3. 3

    What was tested

    It should match what you're buying: same product, same strength.

  4. 4

    Batch

    Which production batch was tested. The vials we sell now are from this batch.

  5. 5

    Blind test

    The lab wasn't told what was inside. It worked it out itself and found retatrutide.

  6. 6

    The results

    11.13 mg in a 10 mg vial: a little extra, which is normal. 99.888% purity: the lab found almost nothing else.

  7. 7

    Verification key

    The code you type on Janoshik's website to check the report.

Check it yourself in 3 steps

  1. Go to janoshik.com/verify

  2. Type the code G5GU1VF9H9BX or scan the QR code

  3. Make sure what you see matches the report

What it tells you

  • What's in the vial
  • How much is in it
  • How pure it is

Red flags on any report

  • No way to check it
  • A different shop name or product
  • Purity, but no amount
  • One report used for everything

See Retatrutide

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