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#1 in Herbal Supplements Third-Party Tested

Nutricost KSM-66 Ashwagandha

by Nutricost

"Premium KSM-66 ashwagandha extract at the best value"

Amazon Rating
4.5/5
Reviews
38,000+
Price Range
$16-20
Servings
120 capsules (60 servings)
KSM-66 CertifiedThird-Party TestedGMPNon-GMO
Our Editorial Rating
9.0
Excellent
FormCapsule
SubcategoryAshwagandha
View on Amazon

Overview

Nutricost KSM-66 Ashwagandha provides 600mg of the clinically studied KSM-66 root extract per 2-capsule serving. KSM-66 is the most clinically studied ashwagandha extract, with over 24 gold-standard clinical trials demonstrating benefits for stress reduction, cortisol lowering, testosterone support, and athletic performance. At under $0.17 per serving, it's the best value for genuine KSM-66.

Key Ingredients

IngredientAmount
KSM-66 Ashwagandha Root Extract600mg

Pros & Cons

What We Like

  • KSM-66 — most clinically studied ashwagandha
  • 600mg — clinical dose used in studies
  • 120 capsules — 2-month supply
  • Under $0.17 per serving
  • 24+ clinical trials supporting KSM-66
  • Third-party tested

What Could Be Better

  • Requires 2 capsules per serving
  • Not organic
  • Some users report drowsiness
  • May interact with thyroid medications

Who Is This For?

Best For

  • Stress and cortisol management
  • Those wanting clinically studied ashwagandha
  • Budget-conscious buyers

Not Ideal For

  • Those on thyroid medication (consult doctor)
  • Pregnant or nursing women
  • People sensitive to nightshade family

Our Verdict

9.0/10 — Excellent

Nutricost KSM-66 Ashwagandha is the best value in the ashwagandha market. The KSM-66 extract is the real deal — backed by more clinical evidence than any other ashwagandha form. At this price point, there's no reason to buy generic ashwagandha.

Alternatives to Consider

No direct alternatives listed for this product yet.