2026-04-02 · 6 min read · guarantee / quality-coa

Third-Party Blind Test Report: Verifying 99.58% HPLC Purity on Batch #RB202603

A buyer sent anonymised samples to an independent laboratory. We walk through the method, the result and how it compared with our COA.

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The buyer selected three vials at random from batch #RB202603 and submitted them under a blind code to an independent analytical laboratory.

The laboratory reported 99.58% purity by HPLC with mass confirmed by MS — consistent with the batch COA issued at release.

Blind testing removes the supplier from the loop. That is exactly why we support it, and why our quality pledge covers testing costs if a result ever falls below specification.

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