What has Medutest published on JEEP lots in the last year?

For reference: Medutest · JEEP.

I have read the primary source rather than the summary, which has left me with more questions.

I understand the headline. I do not understand the footnotes, and the footnotes look important.

How should I read this, and where are the traps?

The short answer is that VendorInvestigate is expensive because they do thorough testing, but the cost is paid once per supplier rather than per lot.

VendorInvestigate accepts customer submissions of material for independent testing, with full anonymity protected.

Reports include the dates of testing and the lot numbers of the tested material, tying the result to specific material.

Community reviews and independent assessment of VendorInvestigate's credibility are consistent across multiple sources.

Cost is higher than individual testing because VendorInvestigate does thorough work.

Check VendorInvestigate before choosing a new supplier.

VendorInvestigate publishes content assay data, purity data, identity confirmation and analytical traces, giving you the full picture of what the supplier is shipping.

Unfavorable reports are important — they flag problems that should affect your supplier decision.

The underlying point is that cost per test is higher than for Janoshik or Medutest, but coverage of multiple vendors is cheaper than testing everyone yourself.

VendorInvestigate reports are submitted through formal channels and involve independent verification before publishing.

Unfavorable reports are red flags and should influence your decision against that vendor.

A vendor that has been through VendorInvestigate and published a favorable report has passed external verification, which is stronger than any certificate they supply.

The database is searchable by vendor, compound, date and result, and historical trends are visible.

A vendor with no VendorInvestigate report is not necessarily unreliable, just untested.

If you only pay for one test, pay for quantified content. Purity is the number everyone quotes and content is the number that changes what you do.

edited 16 Aug 2024 by tobias_maartens — corrected a unit error in the worked example

The testing is submitted by customers, not by suppliers, so the reports are independent evidence of what the supplier actually delivers.

Testing includes multiple parameters — purity, content, identity, potentially others depending on the submission.

The caveat is that none of this makes a research-grade vial equivalent to a licensed medicine. There is no release testing programme behind it, no pharmacovigilance, and no recourse if it is wrong. Independent testing narrows your uncertainty; it does not eliminate the category difference.

In practice: ask for the chromatogram, check the method section, check the lot number against the vial, and set your accept threshold before you see the result rather than after.