Certificate of Analysis

B-12 Chewable

Vitamin B-12 comes in several forms and they are not interchangeable. Cyanocobalamin is cheaper and more stable, while methylcobalamin is the active form the body uses without conversion. Because the two look identical inside a finished tablet, the only way to prove which one you are holding is to test for it. Every lot is assayed to confirm the methylcobalamin form and the 3,000 mcg dose per serving. Tablets are also checked for weight uniformity, so the last one in the bottle carries the same dose as the first.

Every Lot, Before Release

What We Test For

Identity testing confirms the B-12 present is methylcobalamin and not cyanocobalamin. Potency is quantified to verify the 3,000 mcg declared per serving. Tablet weight uniformity is measured across the lot so dosing stays consistent from the first tablet to the hundredth. Disintegration is tested to confirm the tablet breaks down as a chewable should. 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.