Every Batch Tested: The COA Story
In the supplement world, "high quality" is the cheapest sentence to write and the hardest to prove. The honest version of quality isn't a word on a box — it's a document you can actually check. Here's what gets tested before a single stick reaches you, and why we put the proof in your hands.
not a sample
often higher
behind it
What a COA actually is
A Certificate of Analysis (COA) is a lab report for a specific production batch — a "lot." Instead of trusting a number printed once on a box, a COA shows the measured results for the exact batch your sticks came from. It's the difference between "trust us" and "here's the document." In a category full of vague promises, that single habit — testing every lot and sharing it — separates brands that mean it from brands that say it.
What gets checked before it ships
Each lot is screened on more than just the headline number. The essentials:
The conservative number, on purpose
Here's the part we're proud of. We print 30 mg minimum on the box — not because that's the most we can claim, but because every batch should clear it. The measured content is frequently higher. Rather than print a flashy peak number we couldn't promise every time, we under-promise on the label and let the per-lot COA show the real figure. Under-promise, over-deliver, and make it checkable.
How to use it: find the lot number on your box, look up that lot's COA, and see your batch's actual numbers. The proof travels with the product — it isn't a claim you have to take on faith.
The system behind the document
A COA is only as trustworthy as the facility that produces it. Dr. Choi's is made at Pharmacofood in Geumsan, a plant that holds a stack of independent credentials — the kind that require ongoing audits, not a one-time sticker:
Each of these is a system for keeping quality consistent batch after batch — the unglamorous infrastructure that makes a number on a box mean something.
Why this is the whole point
Anyone can say "premium." Far fewer will hand you the lab report. Testing every lot and making it checkable is slower and more expensive than printing a confident number — which is exactly why it's worth doing. When you're paying for quality, you deserve to verify it, not just believe it.
Proof, not promises
Dr. Choi's tests every lot and gives you the COA to check it — 6-year Geumsan roots, full spectrum, made in a facility built around verification.
Explore the ginseng →* 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. Ginsenoside figures refer to label and per-lot Certificate of Analysis values; actual measured content varies by batch. Certifications listed apply to the manufacturing facility. This article is for educational purposes and is not medical advice; if you are pregnant, nursing, taking medication, or managing a health condition, consult a qualified healthcare professional before starting any supplement.