A kanna tablet label can show both an extract weight and an alkaloid percentage. They answer different questions. The weight tells you how much extract is claimed; the percentage describes a specified share of that extract or a test result, depending on the label.
Keep the units separate
Suppose a tablet states 150 mg of extract standardized to 5% mesembrine. A simple calculation gives 7.5 mg as a nominal mesembrine amount if both numbers refer to the same material and basis. It is not automatically a measured result for that finished tablet. Processing and batch variation can change the actual amount.
Find the percentage basis
Look for whether the figure is for mesembrine alone, total mesembrine-type alkaloids, or something else. The terms are not interchangeable. Check whether the percentage is a target specification or a laboratory value and whether the certificate matches the batch in hand.
Review the complete formula
A combination tablet can contain other active ingredients. The total tablet weight includes inactive components too. Compare serving sizes, flavoring, warnings and any other named actives before treating two products as comparable.
A percentage can help interpret a label, but it does not establish a clinical benefit or predict an individual response. Research on Sceletium and its alkaloids is still developing.
Sources: mesembrine-type alkaloid review and Sceletium review.
