Top Picks
These are the products we currently recommend, chosen from what we have reviewed across the site. Each pick lists what it is good for and who it suits, so you can match one to your situation rather than defaulting to the cheapest listing.
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Standardized KSM-66 root extract in capsule form, the same preparation the dosing guidance across this site refers to. It is labelled at 1000 mg, above the 300 to 600 mg daily range used in the trials discussed here, so read the serving size on the label rather than assuming one capsule equals a studied dose.
Bulk cut-and-sifted whole root for brewing tea or making your own blends. This is raw herb, not a standardized extract, so it cannot be dosed against the extract amounts used in the studies.
A straightforward root extract at a mid-range capsule strength, sold as two bottles so a daily habit runs several months before reordering. The listing does not name a standardized extract such as KSM-66, so the withanolide content is not stated.
A 240-count bottle carrying vegan, kosher and non-GMO certifications on the label. The bottle size suits someone planning to stay on it for months rather than running a short trial.
States the withanolide percentage on the label, which many listings leave off, at a smaller 300 mg KSM-66 serving. That makes it easier to start low and work upward instead of beginning at a full study dose.
Three bottles bought together, which is where the per-capsule cost falls. Worth pricing against a single premium bottle before assuming the higher price buys more actual extract.