What Is a Certificate of Analysis (COA)?
A Certificate of Analysis is an independent lab report that shows what is actually in a hemp product. It is the most important document for verifying quality, potency, and compliance. This guide from Solverra Holistics explains what a COA contains and how to read one, so you can buy third-party tested CBD with confidence.
The basics
What a COA is and why it matters
A Certificate of Analysis, or COA, is a report issued by an independent, third-party laboratory that tests a specific batch of product. For hemp CBD, the COA is what turns a marketing claim into a verifiable fact. It confirms how much CBD and other cannabinoids are present, verifies that Delta-9 THC is under the 0.3% federal threshold, and screens for contaminants. Without a current, batch-matched COA, a label is just a promise.
Every Solverra hemp product links to a third-party COA. Reading one takes only a few minutes and is the single best habit for buying quality CBD.
Inside the report
What a COA shows
Potency panel
Lists CBD, CBN, Delta-9 THC, and other cannabinoids by amount, confirming the label and the under-0.3% THC line.
Contaminant screening
Screens for heavy metals, pesticides, residual solvents, and microbials, with pass or fail results.
Batch and lab details
Shows the batch or lot number, test date, and the accredited lab that ran the analysis.
Step by step
How to read a COA
Start by matching the batch or lot number on the COA to the number printed on your product; a report for a different batch does not tell you about the bottle in your hand. Next, check the cannabinoid potency panel to confirm the CBD amount roughly matches the label and that Delta-9 THC is at or under 0.3%. Then review the contaminant sections, heavy metals, pesticides, residual solvents, and microbials, and confirm each shows a pass or a result within limits.
Finally, look at the date and the laboratory name. A COA should be reasonably current and issued by an accredited, independent lab rather than the seller’s own in-house testing. If a company cannot produce a batch-matched, third-party COA, treat that as a reason to walk away.
Why it protects you
COAs and buying quality CBD
The COA is the thread that ties every quality claim together: spectrum, potency, and compliance. It is why third-party tested CBD is worth seeking out and why Solverra publishes a report for every hemp product. Once you can read a COA, you can evaluate any brand on the same objective basis rather than relying on packaging. To see how the THC line connects to the law, read is CBD legal.
FAQ
COA questions, answered
What does a Certificate of Analysis prove?
A COA from an independent lab confirms a batch’s cannabinoid content (including that Delta-9 THC is under 0.3%) and screens for contaminants such as heavy metals, pesticides, residual solvents, and microbials. It verifies what is actually in the product.
How do I know a COA matches my product?
Match the batch or lot number printed on your product to the batch number on the COA. If they do not match, the report does not describe the item you have.
Should CBD be third-party tested?
Yes. Independent, third-party testing is more trustworthy than in-house claims. Every Solverra hemp product links to a current third-party Certificate of Analysis.