Full-Panel COA vs Potency-Only COA: What a Real Lab Report Includes
Side by side
| Full-Panel COA | Potency-Only COA | |
|---|---|---|
| Panels included | Cannabinoids (potency), plus residual solvents, heavy metals, pesticides, microbials and mycotoxins; some labs add terpenes | Cannabinoids only: CBD, THC and the minor cannabinoids |
| What the potency page proves | The mg of CBD and the THC level match the label for that batch | The same thing, and it is all the report says |
| What the safety pages prove | Whether the batch was screened for leftover extraction solvents, metals, pesticides, bacteria and mold | Nothing. Those questions are simply not answered |
| THC check | Shown, with a reporting limit, so a THC-free claim can be checked | Shown, so a THC-free claim can still be checked |
| Cost to the brand | More: several panels per batch, so more lab fees and a longer wait for results | Less: one panel, which is why some brands stop there |
| How to tell which you got | Pages or sections for solvents, metals, pesticides and microbials, each with a pass or fail | One page of cannabinoid numbers, with no safety sections |
| Red flags | Missing sections, no lab accreditation, a sample name that does not match your batch | Presented as "lab tested" or "fully tested" with only potency shown |
| Where it is found | A QR code on the box, a COA page on the brand site, or on request | The same places, so the format alone does not tell you the scope |
Pick by use case
- You want to know the batch was screened for contaminants, not only for strength
- You are buying a product you will use every day or give to a family member
- You want a brand that is comfortable showing the whole report
- You want a report you can match line by line against the label
- You only want to confirm the mg of CBD or the THC level on a label
- You are checking a claim like "THC-free" and nothing else
- You are looking at an early-stage report and plan to ask the brand for the rest
- You accept that it is half a lab report, not a full safety check
What a COA is, and why "has a COA" is not enough
A COA, or certificate of analysis, is a report from a laboratory that tested a sample of a specific batch. A good one names the lab, the sample, the batch number and the date, and it ends with a signature or accreditation details. A lab explainer we read, from ACS Laboratory (checked October 2026), says the header and footer are what make the data believable.
The trouble is that "has a COA" covers a lot of ground. A report can be one page of potency numbers or a dozen pages of safety results, and both get called a lab report. The same ACS explainer lists missing safety tests as the first thing to watch for when you compare a COA to the product. So the question to ask is not whether a brand has a report. It is which tests are on it.
What each page of a full-panel COA tells you
The cannabinoid page is the one most people look at. It shows how much CBD is in the batch and whether THC is present, so you can check the label. The terpene page, when a lab includes one, lists aroma compounds. JointCommerce's COA guide (checked October 2026) notes that some cheaper testing packages leave terpenes out, and that is a reason to look closer.
The safety pages are where a full panel earns its name. Residual solvents show whether anything from extraction is left in the product. Heavy metals check for lead, arsenic, cadmium and mercury, which the plant can take up from soil. Pesticides check what was used in the field. Microbials check for bacteria, yeast and mold. Mycotoxins, which ACS lists with the safety panels, are toxins that some molds produce.
Each safety line has a limit and a result. You are looking for a result under the limit, or the letters ND, which mean not detected. If a section is there but the result column is blank, ask the brand why.
Why some brands stop at potency, and how to spot it
The reason is mostly cost. Each added panel is another fee and more lab time for every batch. We do not know what any one brand pays, and we will not guess. A brand that tests only potency may not be hiding anything. It also has not shown you anything beyond strength, so you cannot tell.
You can spot it in under a minute. Scroll the report. If you see one table of cannabinoids and then the signature, it is potency-only. If you see headed sections for solvents, metals, pesticides and microbials, it is a full panel. Also check that the batch number on the report matches the batch number on your bottle, since a report for a different batch proves little.
What we do, and what we cannot tell you from here
Our hemp comes from our Kentucky and Ohio farms, and every batch is third-party tested. You can ask for the batch COA, and our COA page explains what to look for and where the reports live. We would rather you check than take our word for it.
On the potency page of our THC-free broad-spectrum drops, THC reads ND or below the lab's limit of quantitation. That is the line to find if you want to confirm the THC-free claim for yourself. Our third-party tested vs in-house only comparison covers who the tester is, which is the other half of this question.
One honest limit: a full-panel COA tells you about the sample that went to the lab. It is not a guarantee about every bottle, and it does not say anything about how a product will make you feel. It is evidence about contents, which is the part you can verify.
FAQ
What is the difference between a full-panel COA and a potency-only COA?
A potency-only COA reports cannabinoid levels, such as the mg of CBD and the THC level. A full-panel COA reports those plus safety tests for residual solvents, heavy metals, pesticides, microbial contaminants and mycotoxins. The first checks the label's strength claim. The second checks whether the batch was screened for contaminants.
What tests should a full CBD COA include?
Cannabinoid potency, residual solvents, heavy metals, pesticides, microbial contaminants and mycotoxins. Some labs also report terpenes. Each safety section should show a limit and a result, and the report should name the lab, the sample and the batch.
How can I tell if a COA is potency-only?
Read down the report. If it is one table of cannabinoids and then a signature, with no sections for solvents, metals, pesticides or microbials, it is potency-only. Also check that the batch number on the report matches the batch on your bottle.
Is a potency-only COA a red flag?
It is a reason to ask for more. It does not mean the product is unsafe, but it does mean the brand has not shown you any safety results. A brand that tests fully will usually share the whole report when asked.
Do I need a COA for a THC-free CBD product?
Yes, and it is the best way to check the claim. Look at the THC line on the potency page. A THC-free product should read ND, not detected, or below the lab's reporting limit. A brand's label alone cannot show that.
Where do I find a CBD brand's COA?
Look for a QR code on the box, a COA or lab results page on the brand's site, or ask the brand directly. At botanCBD you can ask for the batch COA or start at our COA page.
Does a COA mean a product is safe or will work for me?
No. A COA describes what a lab found in one sample of one batch. It is useful evidence about contents and strength. It does not promise any effect, and it is not medical advice. Talk to your doctor before adding a hemp product to your routine.
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These statements have not been evaluated by the Food and Drug Administration. botanCBD products are not intended to diagnose, treat, cure, or prevent any disease. Talk with your healthcare provider before starting any new wellness product, especially if you take prescription medications.