Double Wood Supplements Ashwagandha KSM 66 Organic and Clinically Studied Extract
- Ashwagandha
- Capsule
- 120
- Unflavoured
- Better rated than 86%
A standardized KSM 66 ashwagandha extract at a clear 600 mg serving, organic and clinically studied, positioned as a straightforward adaptogen capsule for daily use.
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How it ranks among the 84 ashwagandha we track
4.7★ across 543 Amazon ratings, Bayesian-smoothed toward the category average.
543 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
8,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 84 ashwagandha we track - how the scorecard works · full ashwagandha data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Double Wood's Ashwagandha uses the KSM 66 extract, an organic and clinically studied form of the herb, delivered at 600 mg per serving across 120 unflavored capsules. It is marketed as an adaptogen for cortisol management, aimed at both women and men.
KSM 66 is a specific, named ashwagandha extract that has been the subject of published research on stress and cortisol, setting it apart from generic ashwagandha powder. The two capsule, 600 mg serving works out to 60 servings per bottle, and strong monthly purchase volume points to steady repeat demand.
- KSM 66 organic ashwagandha extract
- 600 mg per serving
- 120 capsules, 60 servings
- Clinically studied formulation
Who it's for
Aimed at adults looking for a standardized ashwagandha extract rather than a generic root powder, taken as part of a stress or cortisol focused routine. Not the pick for anyone who wants a flavored or gummy format, since this is an unflavored capsule.
Strengths and trade-offs
Drawn from this product's published specifications.
- Standardized, clinically studied KSM 66 extract
- 600 mg per two capsule serving
- High monthly purchase volume
- Unflavored capsule only, no alternative format
- Two capsule serving needed for full dose
Performance notes
Each serving is two capsules totaling 600 mg of KSM 66 extract, a specific ashwagandha standardization studied for its effect on cortisol and stress markers. With 120 capsules per bottle, that gives 60 servings, and the product carries no added flavor.
Specifications
| Brand | Double |
|---|---|
| Model | KSM66 |
| Form | Capsule |
| Count | 120 |
| Flavor | Unflavoured |
How it compares
This product against the closest alternatives we track in ashwagandha.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Double Wood Supplements Ashwagandha KSM 66 Organic and Clinically Studied ExtractThis product | 4.7 / 5 | 543 | 4.3 / 5 |
| Himalaya Organic Ashwagandha RootHimalaya | 4.6 / 5 | 13,118 | 4.6 / 5 |
| Youtheory AshwagandhaYoutheory | 4.7 / 5 | 5,747 | 4.6 / 5 |
| Gaia Herbs Ashwagandha Root 350 mgGaia | 4.6 / 5 | 6,942 | 4.5 / 5 |
| Bronson Ashwagandha Extra Strength Stress & Mood Support with BioPerineBronson | 4.6 / 5 | 6,809 | 4.5 / 5 |
Similar ashwagandha from other brands
Questions about the Double KSM66
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is KSM 66?
It is a specific, standardized ashwagandha extract that has been used in published clinical research, distinct from generic ashwagandha powder.
How many capsules make up a full serving?
A serving is two capsules, totaling 600 mg.
Is this ashwagandha organic?
Yes, it is listed as an organic, clinically studied extract.