Ayurveda2 min read
Ashwagandha, and how to compare a herbal supplement honestly
Extract ratio, withanolide percentage and root against whole plant change what is in the capsule far more than the brand on the front does.
By Right Supplements

Herbal supplements are harder to compare than vitamins, because two products can share a plant name and share very little else. Ashwagandha is a good worked example, and the method transfers to most herbals on the shelf.
Powder or extract
A capsule of milled root and a capsule of concentrated extract are different products. Extracts state a ratio: 10:1 means ten parts raw material reduced to one part extract, so a 300 mg extract capsule is not directly comparable to a 500 mg powder capsule. Neither is automatically better; they are simply not the same quantity of the same thing.
The standardisation line
Better extracts state a standardised percentage of withanolides, the marker compounds used to describe strength. A product that names a percentage has committed to a number that can be tested. A product that names only a milligram weight has not. When two listings sit at the same price, this line is usually the difference.
Root, leaf or whole plant
Traditional preparations use the root. Some cheaper material includes leaf or whole plant, which changes the compound profile. Labels that specify "root extract" are telling you something; labels that say only "ashwagandha" are leaving it open.
Then do the arithmetic
Once you have matched two products on form, standardisation and plant part, go back to cost per day. That is the point where a comparison is worth making, and the point where the cheaper bottle is sometimes genuinely the better buy.
None of this is medical guidance. Herbals interact with prescriptions and with existing conditions, and that conversation belongs with a qualified healthcare professional.
Related on the site
Right Supplements compares prices across the stores we track. We are not a pharmacy and not a seller, we hold no stock, and nothing here is medical advice — talk to a qualified healthcare professional before starting any supplement.


