What is a Certificate of Analysis (COA)?
A Certificate of Analysis, or COA, is a document from a laboratory that reports what testing found in a specific batch of a product, covering its identity, potency and screening for contaminants. It is the paperwork that lets a claim on the label be checked against an actual measurement.
A COA is evidence rather than a badge, and it is easy to confuse with the guarantees that sit near it. It is the proof behind a third-party tested claim, it is distinct from a GMP certified statement about how a facility operates, and it is where the potency of a standardised extract can actually be verified rather than assumed.
It matters most to buyers who want to see proof instead of trusting the front of the pack. The catch is that a COA only speaks for the batch it names, it can be self-issued or selectively shown, and it is only as trustworthy as the laboratory that produced it and the match between the certificate and the product in your hand. A COA with no batch number, or from an unnamed lab, tells you very little.
You can see the batch testing behind our range on our science page.
Frequently asked questions
How is it different from a GMP certification?
GMP certification is about the standards a facility follows when it manufactures. A COA is a result for one specific batch, so it tells you what was actually in that lot rather than how the site is run.
Who uses it, or when is it the right choice?
Careful buyers and retailers use COAs to confirm potency and purity before trusting a product. It is the right document to ask for whenever a label makes a specific dose or purity claim.
When is it the WRONG choice?
A COA is misleading when it does not match the batch in front of you or comes from an unnamed lab. Relying on an old or generic certificate is worse than useless, because it implies checks that may not apply to your unit.