What Are CBD Certificates of Analysis and Why They Matter
If you are shopping for CBD, you have probably seen brands mention "third-party tested" or "lab results available." But what does that actually mean? And how do you know if a brand is telling the truth?
The answer is a Certificate of Analysis -- or COA. It is the single most important document a CBD brand can provide, and most customers never look at it. After reading this, you will know exactly what to look for and why it matters.
What Is a Certificate of Analysis?
A Certificate of Analysis is a document produced by an independent laboratory. The CBD company sends a product sample to the lab. The lab tests it and publishes the results.
The COA tells you exactly what is in the product. How much CBD. How much THC (if any). Whether it contains pesticides, heavy metals, or solvents. Whether the label matches what is actually in the bottle.
This is not the company testing its own product. That would be like grading your own homework. A COA comes from a third party -- a lab with no financial relationship to the brand. That independence is what makes it trustworthy.
Why COAs Matter More in CBD Than Almost Any Other Industry
The CBD industry is largely self-regulated. The FDA does not approve CBD products the way it approves prescription medications. That means the burden of proof falls on the brand -- and on you, the buyer.
Studies have found that a significant number of CBD products on the market contain less CBD than the label claims. Some contain more THC than advertised. Some contain contaminants that have no business being in a wellness product.
A COA is your protection against all of that. It is the difference between trusting a marketing claim and reading the data yourself.
How to Read a CBD COA
A typical COA includes several sections. Here is what to look for:
Cannabinoid Profile. This section shows the concentration of CBD, THC, CBN, and other cannabinoids in the product. Check that the CBD amount matches what the label says. If the label says 1000mg, the COA should confirm that number (or very close to it).
THC Content. If a product claims zero THC, the COA should show THC as "not detected" or "ND." If THC is present, the amount should be below 0.3% to comply with federal law. For anyone concerned about drug testing or who simply does not want THC, this line is the one that matters most.
Contaminants. Look for sections on pesticides, heavy metals (lead, arsenic, mercury, cadmium), residual solvents, and microbial contaminants. You want to see "pass" or "not detected" across the board. If a COA does not include contaminant testing, that is a red flag.
Batch Number. A legitimate COA is tied to a specific production batch. The batch number on the COA should match the batch number on your product. If there is no batch number, or if the brand only has one COA for all products, that is another red flag.
Lab Name and Accreditation. The COA should clearly identify the testing laboratory. Reputable labs hold ISO 17025 accreditation, which means they meet international standards for testing competence.
What to Watch Out For
Not all COAs are created equal. Some things that should raise your eyebrow:
A COA that only tests cannabinoid content but skips contaminant testing. Half a test is not good enough.
A COA with no lab name or no way to verify the results. If you cannot contact the lab or confirm the report, it may not be real.
A brand that claims "lab tested" but does not publish the actual COA. If a company says their products are tested but will not show you the results, ask yourself why.
A COA that is more than a year old. Testing should happen regularly, not once and never again.
How Cross Country Wellness Handles Lab Testing
At Cross Country Wellness, we publish a Certificate of Analysis for every product we sell. Not behind a form. Not buried in a FAQ page. Available for you to read before you buy.
Every batch is sent to an independent lab. Every result is published. We do this because we have nothing to hide -- and because we believe you deserve to see what you are putting in your body.
Our products are zero THC, confirmed by independent lab testing. You can see the results yourself on every product page.
Read Our Lab Results | Shop All Products
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use.
These statements have not been evaluated by the Food and Drug Administration. Our products are not intended to diagnose, treat, cure, or prevent any disease.
About the Author
Jordan Bergsrud (J Bird) is the founder of Cross Country Wellness and was named Cannabis Activist of the Year in Las Vegas in both 2020 and 2021. After losing his father to opioid addiction, Jordan dedicated himself to educating people about plant-based alternatives. He handles product sourcing, customer relationships, and education at CCW.
This article is for educational purposes. CBD products are not intended to diagnose, treat, cure, or prevent any disease.