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How to Read a CBD Certificate of Analysis (COA)
A Certificate of Analysis is the single most useful document a CBD brand can hand you, and it's also the one most owners never think to ask for. Here's what it is, why it matters, and exactly what to look for the next time a brand — ours or anyone else's — sends you one.
What a COA actually is
A Certificate of Analysis is a lab report generated by an accredited, independent testing facility that received a physical sample of a specific production batch and measured what's actually in it — cannabinoid content, THC level, and a panel of possible contaminants. It's not a marketing document written by the brand; it's produced by a third party with no financial stake in the results. That independence is the entire point: a brand grading its own homework isn't the same as an outside lab doing it.
Why third-party testing matters
The CBD pet supplement space is not tightly regulated the way human pharmaceuticals are, and that gap creates real inconsistency between brands. Independent studies of CBD products sold online have repeatedly found meaningful mismatches between what's on the label and what's actually in the bottle — some products test with less CBD than advertised, some with more, and some with detectable THC despite "0% THC" label claims. Third-party lab testing is the mechanism that lets you verify a specific bottle rather than simply trusting a label. For background on why isolate formulations in particular can guarantee a zero-THC result at the molecular level, see our guide to full-spectrum vs. isolate CBD.
The three panels to look for
Panel 01
Cannabinoid potency panel
Lists the measured amount of each cannabinoid — CBD, CBG, and others — found in the tested sample, usually in mg per bottle or mg per mL. Compare this number against what the label claims. A legitimate lab result should land close to the labeled amount; a large gap in either direction is a red flag.
Panel 02
THC panel
Confirms how much, if any, THC was detected. Look for a result reported as "ND" (non-detect) or "<LOQ" (below the lab's limit of quantification) rather than a brand simply asserting "THC-free" with no test to back it up.
Panel 03
Contaminants panel
Screens for pesticides, heavy metals (like lead, arsenic, cadmium, and mercury), residual solvents left over from extraction, and microbial contamination (mold, yeast, bacteria). Every value should fall within the lab's pass/fail thresholds — the COA should state clearly whether the batch passed.
Questions to ask if a brand won't share their COA
If a brand can't produce a current, batch-specific COA on request, that's worth treating as a meaningful gap — not a minor inconvenience. A single reference test from years ago, or a COA for a "representative sample" rather than the actual batch you're buying, tells you less than it appears to. Reasonable questions include: Is this COA for the specific batch on the bottle in front of me, or a general reference sample? How recently was it tested? Does the lab report its accreditation? A brand confident in its manufacturing process should have no hesitation answering these.
How to request Pet Omega Hemp's COA
Every batch of Pet Omega Hemp is third-party lab tested for potency and contaminants before it ships — not just one reference batch. Reach out through our contact page and we'll send the current Certificate of Analysis, or see the product page for the full ingredient and dosing breakdown alongside it.
A COA is one part of evaluating any CBD product — for the full list of what else to check before buying, see how to choose a CBD product for dogs.