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Seller transparency checklist

Ten questions about how much of a seller's testing you can check for yourself. The score is educational: it rates transparency, not what is in the vials.
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  1. 1. Does the seller publish a test report for the specific batch you are buying?
  2. 2. Can each report be verified with the lab that issued it (a code, QR or verify page)?
  3. 3. Does the report include identity (mass) as well as purity?
  4. 4. Does the report state the amount found in the vial against the label?
  5. 5. Is the laboratory named, with a website or address you can check yourself?
  6. 6. Is the batch code printed on the vial, and does it match the report?
  7. 7. Are purity figures the same everywhere the seller quotes them?
  8. 8. Does the seller share the full report, not only a screenshot or crop?
  9. 9. Does the seller answer questions about testing directly when you ask?
  10. 10. Has the seller ever had an independent test published, good or bad, that they did not choose?

0 of 10 answered. Your result appears when all are answered.

How this works

Transparency is not quality. A seller can be open about everything and still sell an underfilled vial, and a seller who shares nothing may be selling exactly what the label says. What transparency changes is whether you can check. The ten questions measure how much of a seller's testing claim you could verify yourself.

FIG 21Red flags on a certificate

A generic certificate with warning marks on a missing batch number, no verification route, no signature, a cropped edge and a purity figure without a method.

The questions are weighted: a batch-specific report you can verify with the lab counts most, followed by identity results, amount results and a named laboratory. The score is educational, runs in your browser and stores nothing, and no seller is named. For the reasoning behind each question, read red flags on a seller's website and lesson 14.

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