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NOW Foods vs Nootropics Depot Ashwagandha (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Nootropics Depot scores higher on our rubric (91 vs 83 on our 0-100 execution score), mainly because KSM-66 is the extract with the most clinical research behind it and carries published third-party COAs. NOW Foods wins on price, at about $0.16 per dose versus Nootropics Depot's $0.38. In our view, if you want the extract that matches the published trials and verified testing, Nootropics Depot is worth the premium; if you want an inexpensive, reputable standardized ashwagandha and are comfortable with a 2.5% extract, NOW Foods is a solid budget pick.
Ashwagandha 450mg Standardized Extract
NOW Foods
KSM-66 Ashwagandha Extract 300mg
Nootropics Depot
Head-to-Head Comparison
| Category | Ashwagandha 450mg Standardized Extract NOW Foods | KSM-66 Ashwagandha Extract 300mg Nootropics Depot |
|---|---|---|
| Brand Score | 83/100 | 91/100Winner |
| Dosing & Form | 25/25Winner | 25/25 |
| Purity | 19/25 | 22/25Winner |
| Value | 20/25 | 21/25Winner |
| Transparency | 19/25 | 23/25Winner |
| Cost/Day | $0.16Winner | $0.38 |
| Dose/Serving | 450mg | 300mg |
| Form | Root Extract (2.5% withanolides) | KSM-66 Root Extract (5% withanolides) |
| Third-Party Tested | No | ✓ Yes |
| Proprietary Blend | No | No |
Why This Comparison Matters
NOW Foods and Nootropics Depot represent two ends of the ashwagandha market. Nootropics Depot uses the branded KSM-66 extract (5% withanolides) with published COAs; NOW Foods uses a generic standardized root extract at 2.5% withanolides for a lower price. The core question is whether the branded, higher-standardized extract is worth the premium.
Most peer-reviewed ashwagandha research uses standardized branded extracts like KSM-66, which is why extract quality matters more here than for a commodity supplement. NOW's 2.5% extract is legitimate but sits below the standardization used in most trials.
We scored both on evidence, quality, cost per effective dose, and transparency.
Detailed Score Breakdown
Ashwagandha 450mg Standardized Extract
NOW Foods
Generic standardized extract (2.5% withanolides) - less studied than KSM-66 or Sensoril
GMP certified facility, NPA A-rated, no third-party sport certification
$0.12/day at 450mg dose - the cheapest option here
Withanolide percentage disclosed, but not a branded extract so exact sourcing is less transparent
Budget-friendly option, but note that generic extracts may not match the clinical results of KSM-66 or Sensoril
KSM-66 Ashwagandha Extract 300mg
Nootropics Depot
KSM-66 is the most clinically studied ashwagandha extract with 24+ published clinical trials
Uses genuine KSM-66 with certificate of analysis available, third-party tested in-house and externally
$0.38/day at 600mg (2 capsules) - still strong value for genuine KSM-66 after a 2026 price rise
Full ingredient disclosure, KSM-66 certification, withanolide content specified on label
Nootropics Depot is known in the supplement community for rigorous quality testing and genuine ingredient sourcing
How We Compared These Products
Every product in our database is scored on four equally-weighted pillars: dosing accuracy and form quality, purity verification (third-party testing), cost per clinically effective dose (not cost per pill), and label transparency. Each pillar is worth 25 points for a total of 100.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
More Ashwagandha Comparisons
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FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.