KSM-66 Ashwagandha by NutraHerbals
by NutraHerbals
"The most clinically studied ashwagandha extract — KSM-66 root-only formula"
Overview
This supplement features KSM-66, the most extensively studied ashwagandha extract in the world with 24+ gold-standard clinical trials. KSM-66 is a full-spectrum root extract standardized to 5% withanolides, produced using a unique extraction process that preserves the natural balance of the root's active compounds. Clinical studies have demonstrated KSM-66's benefits for stress reduction (cortisol lowering), anxiety, sleep quality, testosterone in men, athletic performance, and cognitive function. Each serving provides 600mg of KSM-66 ashwagandha root extract.
Key Ingredients
| Ingredient | Amount |
|---|---|
| KSM-66 Ashwagandha Root Extract | 600mg |
| Withanolides | 5% (30mg) |
| BioPerine Black Pepper Extract | 5mg |
Pros & Cons
What We Like
- KSM-66 — the most clinically studied ashwagandha extract
- 24+ gold-standard clinical trials published
- 600mg dose matches clinical study protocols
- Root-only extract (no leaf, which can cause GI issues)
- Standardized to 5% withanolides
- BioPerine included for enhanced absorption
- Clinically shown to reduce cortisol by 27.9%
What Could Be Better
- Effects take 4-8 weeks to fully manifest
- May cause drowsiness in some people
- Not recommended during pregnancy
- Can interact with thyroid medications
- Some people experience GI upset initially
- Many generic brands claim 'KSM-66' — verify authenticity
Who Is This For?
Best For
- Stress and anxiety management
- Cortisol reduction
- Sleep quality improvement
- Men wanting testosterone support
- Athletes seeking recovery benefits
Not Ideal For
- Pregnant or breastfeeding women
- Those on thyroid medication (consult doctor)
- People wanting immediate effects
- Those with autoimmune conditions (may stimulate immune system)
Our Verdict
If you're going to take ashwagandha, use KSM-66. The clinical evidence is overwhelming — 24+ studies showing benefits for stress, sleep, testosterone, and performance. The 600mg dose in this product matches the protocols used in clinical trials. Just make sure you're getting genuine KSM-66 (look for the logo on the bottle) and give it 4-8 weeks to work.
Alternatives to Consider
No direct alternatives listed for this product yet.