American Premium Vitamins by Alanta Berberine Complex 1,000 mg, 60 vegetable capsules

Certificate of Analysis

Berberine Complex

Berberine is a bright yellow alkaloid, which makes it easy to see and easy to adulterate. Cheap berberine is routinely cut with turmeric or with plant material that carries the color and none of the compound. That is why we assay every lot by chromatography rather than trusting appearance or a supplier document. The bitter melon and banaba leaf fractions are identified separately, because botanical powders are the easiest place in any formula to swap one plant for another. A lot that cannot prove all three ingredients is not a lot we will sell.

All Lab Testing

Every Lot, Before Release

What We Test For

Identity is confirmed for all three actives before any potency work begins. Berberine hydrochloride is quantified by high performance liquid chromatography against the 1,000 mg declared per serving. Bitter melon and banaba leaf are verified by botanical identity testing to confirm the correct species and plant part. Banaba leaf is additionally checked for corosolic acid, the marker compound the ingredient is standardized to. Heavy metals are screened by ICP-MS for lead, arsenic, cadmium and mercury. Microbiological testing covers total plate count, yeast and mold, E. coli, Salmonella and Staphylococcus aureus.

How to Check a Lot

Reading Your Certificate

A certificate of analysis is a one page summary of what an independent laboratory found in one specific lot. The lot number at the top matches the number printed on the base of your bottle, so you can confirm you are reading the right document. Each row lists a test, the specification it has to meet, and the result that was actually measured. Results appear as a numeric value, as Pass, or as Not Detected, which means the substance was below the laboratory's limit of detection. Heavy metal results are reported in parts per million and compared against the limit set for that ingredient class. If a single row falls outside specification the lot is rejected and no certificate is ever issued. Certificates are added to this page as each new lot clears testing.