Extract Standardisation: Why Herb Weight Tells You Nothing

Two products can both list the same herb at the same milligram amount and contain wildly different quantities of the compound that does the work.

Why raw weight is meaningless

Botanical potency varies with growing conditions, soil, climate, harvest timing, plant part used, drying method and extraction solvent. A gram of one bacopa harvest can contain several times the bacoside content of another. Listing raw herb weight therefore communicates almost nothing about what you are getting. This is not a minor technicality - it is the single largest source of variation between botanical supplements that appear identical on the label.

What standardisation does

A standardised extract is manufactured to contain a specified percentage of a marker compound - bacosides for bacopa, flavone glycosides and terpene lactones for ginkgo, hypericin or hyperforin for St. John's Wort, withanolides for ashwagandha. This makes batches comparable and lets you connect a product to research that used a defined extract. Research-grade extracts are almost always standardised, which is precisely why unstandardised products cannot claim that research.

How to read the label

Look for the botanical name, the plant part, the extract ratio if given, and the standardisation percentage with its marker compound. A line reading standardised to a stated percentage of the relevant marker is meaningful. A line giving only the herb name and a milligram figure is not. If a product hides amounts inside a proprietary blend, you cannot make this check at all, which is generally the point of the blend.

Where Cognizil fits in

If you are researching supplements in this area, Cognizil is a liquid formula built around six named ingredients — Ginkgo Biloba Leaf, Bacopa Monnieri, St. John’s Wort Extract, N-Acetyl L-Carnitine HCl, Huperzine-A and a Phosphatidylserine Complex. It is labelled for advanced memory support and contains no stimulant. Per-serving amounts are not published, which is a genuine limitation we cover in our label transparency review. The Cognizil official website lists current pricing and guarantee terms.