COA · Certificate of Analysis
A Certificate of Analysis (COA) is an independent laboratory report that verifies what is, and is not, in a product. For CBD it confirms cannabinoid potency (including THC) and screens for contaminants such as heavy metals, pesticides and microbials.
How to read a COA
- Batch number, matches the product you bought
- Cannabinoid potency, CBD and THC in mg and % w/w
- THC result, should be trace or “ND” (not detected)
- Contaminant panels, heavy metals, pesticides, solvents, microbials, mycotoxins
An accredited (ISO/IEC 17025) lab and a batch number you can match to your purchase are the two signs of a trustworthy COA. Every Mery J batch publishes one.
Why it matters
The COA is the single most important trust document in CBD. It turns marketing claims into verifiable facts, which is why we publish one for every batch.
Related terms
THC (tetrahydrocannabinol) is the intoxicating cannabinoid responsible for the “high” associated with cannabis. Hemp-derived wellness products are formulated to contain only trace, region-compliant amounts, or none at all.
Full-spectrumFull-spectrum CBD contains the complete range of naturally occurring hemp compounds, CBD, minor cannabinoids, terpenes and trace, compliant THC. The compounds are thought to work together in what is called the entourage effect.
Broad-spectrumBroad-spectrum CBD contains multiple cannabinoids and terpenes like full-spectrum, but with the THC removed to non-detectable levels. It aims to offer the entourage effect without any THC.
CBD IsolateCBD isolate is the purest form of CBD, typically 99%+ cannabidiol with all other plant compounds removed. It contains no THC, no other cannabinoids and no terpenes, and is flavourless and odourless.
Frequently asked
What does “ND” mean on a COA?
“ND” means not detected, the compound was below the lab’s limit of detection.
Where can I find Mery J COAs?
On the Lab Results page, search any batch number or product to open its full certificate.
Last updated 2026-06-29. Educational information only, not medical advice. meryjwellness.com