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Quick Facts
- Form
- Capsules
- Dose
- 600mg KSM-66 ashwagandha root extract
- Serving
- 1 capsule
- Servings
- 60
- Vegan
- Yes
- Made in
- USA
Nature's Way KSM-66 Ashwagandha 600mg
by Nature's Way
Features the clinically studied KSM-66 ashwagandha root extract, standardised to 5% withanolides. Each capsule delivers 600mg of full-spectrum root extract produced via a unique water-based extraction process. KSM-66 is backed by over 20 clinical trials examining stress, anxiety, sleep quality, and athletic performance. Suitable for daily use as part of a stress-management routine.
AI Review Summary
Nature's Way KSM-66 is one of the most well-researched ashwagandha products available. The 600mg dose at 5% withanolides aligns with clinical trial dosages, giving it strong evidence-based credibility. User feedback is largely positive for stress and sleep, though individual results vary. The clean formulation and third-party certifications add confidence. Priced at the mid-range for branded ashwagandha extracts.
Pros
- +KSM-66 extract backed by 20+ clinical trials
- +Standardised to 5% withanolides — clinically relevant dose
- +Clean ingredient list with minimal fillers
- +Non-GMO verified and TRU-ID certified
Cons
- -Premium price compared to generic ashwagandha
- -Large capsule size may be difficult to swallow
- -Some users report no noticeable effects
Best For
Watch Out
- !May interact with thyroid medications
- !Not recommended during pregnancy or breastfeeding
Ingredients & Composition
Active Ingredients
- KSM-66 Ashwagandha Root Extract
- 600mg
- Withanolides (5%)
- 30mg
Other Ingredients
Hypromellose (capsule shell), Rice flour, Magnesium stearate
Clean Label Analysis
Minimal filler profile with rice flour as a flow agent and magnesium stearate in small amounts. Nothing concerning here — a clean formulation overall.
Quality & Testing
Third-Party Tested
This product has been independently tested by third-party laboratories for purity, potency, and safety.
Certifications
Additional Specifications
- Type
- Herbal
- Form
- Capsules
- Dose
- 600mg KSM-66 ashwagandha root extract
- Serving Size
- 1 capsule
- Fillers Analysis
- Minimal filler profile with rice flour as a flow agent and magnesium stearate in small amounts. Nothing concerning here — a clean formulation overall.
- Allergens
- Free from: gluten, dairy, soy, eggs, nuts, shellfish
- Made In
- USA
How We Score Supplements
Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on aggregated user experiences.
Ingredient Quality
Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.
Value for Money
Price per serving relative to ingredient quality and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 10 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Disclaimer: AIScored provides AI-generated summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.