The CBD industry is barely regulated compared to food or pharmacy, which means the burden of proof falls on you, the buyer. The good news: there is one document that does most of the work, and once you know how to read it, you can size up any product in about a minute. It is called a Certificate of Analysis, or COA.
What a COA actually is
A COA is a lab report from an independent, third-party testing lab — not the brand itself — analyzing a specific batch of product. It tells you two things: how much of each cannabinoid is really in there, and whether the product is clean of the stuff you do not want. A brand that will not show you one is asking for trust it has not earned.
Step 1 — Match the batch
This is the step almost everyone skips, and it is the most important. The COA should list a batch or lot number, and that number should match the one printed on your actual product. A report for a different batch — or a generic report with no batch at all — tells you nothing about what you are holding.
On our Lab Results page, each report is tied to a specific product batch so you can line it up against what you bought.
Step 2 — Read the potency (the cannabinoid panel)
This section lists each cannabinoid found and how much of it there is, usually in milligrams per unit or as a percentage. Here is what to check:
- The CBD amount roughly matches the label. A product advertising 25 mg per serving should test near 25 mg — not 8.
- Any cannabinoid the label brags about — CBG, CBN, THCv — actually appears in the panel.
- The numbers are specific, not suspiciously round across the board.
Step 3 — Find the THC line
For a THC-free product, this is the moment of truth. Look for Delta-9 THC (and ideally total THC) and confirm it reads "ND", "non-detect", "<LOD", or a number at or near zero. If a product is marketed as THC-free but the report shows a real THC value, believe the report, not the box. This matters most if you get drug tested.
Step 4 — Check the safety panels
A full COA is not just potency. The best reports also screen for contaminants, and each should be marked pass:
- Pesticides — residues from how the hemp was grown.
- Heavy metals — lead, arsenic, cadmium, mercury; hemp pulls these from soil.
- Microbials — mold, yeast, harmful bacteria.
- Residual solvents — leftovers from the extraction process.
- Mycotoxins — toxins produced by mold.
Not every brand runs the full slate on every batch, but the more of these you see marked pass, the more seriously the company takes what goes in your body.
Step 5 — Sanity-check the lab itself
Near the top or bottom you will find the testing lab's name and the date. It should be a third party, not the brand's in-house lab, and the date should be reasonably recent for the batch. An ISO-accredited lab is a good sign. An unnamed lab or a years-old report is a flag.
The one-minute version
- Batch number on the report matches the product.
- CBD potency matches the label, and any bonus cannabinoids show up.
- THC reads non-detect (for a THC-free product).
- Contaminant panels say pass.
- A named, third-party lab and a recent date.
Do that five-point check and you are already shopping smarter than most of the market. It is the same standard we hold ourselves to — see our reports and run the checklist on us.