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A certificate or a lot
Every published report, with its batch, assay date and verify key.
See the certificates →
How verification works
What is measured, what is not, and how a key is checked at the lab.
The standard →
Shipping and returns
The flat rate, the free threshold, the cutoff, and how to raise a problem.
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Certificate where testedShows the batch number and test date
A verify key on every certificateCheck it on the lab's website
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