BioStacks
Nutricost

KSM-66 600 mg

1 Capsule · 60 servings · $0.25/serving

iHerbAmazon

Best for

Stress & Mood

Ingredients (2)

KSM-66 Ashwagandha root extract

100%

Dose

600 mg

Target

300–600 mg

Form

Premium

BioPerine

100%

Dose

5 mg

Target

5–20 mg

Form

—

Other Ingredients (2)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

HypromelloseCapsule

Plant-derived capsule material from cellulose

How to Take It

Best taken in the evening

KSM-66 is root-only and less sedating than Sensoril. Trials have dosed it both morning and evening, so either works — take it with food.

With food

On the label

As a dietary supplement, take 1 capsule daily with 8-12 oz of water or as directed by your healthcare professional.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$14.95

$10$20

Cheaper than 78% of 146 ashwagandha supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

KSM-66, Ashwagandha Root Extract, 60 Capsules

Nutricost

KSM-66, Ashwagandha Root Extract, 60 Capsules

🧘 for Stress & Mood

81
Ashwagandha, 60 Veggie Softgels

Sports Research

Ashwagandha, 60 Veggie Softgels

81
Ashwagandha Extra Strength

Futurebiotics

Ashwagandha Extra Strength

63
Ashwagandha

Windmill

Ashwagandha

62
Ashwagandha Capsules 1500mg

Dr. Berg

Ashwagandha Capsules 1500mg

🧘 for Stress & Mood

57

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart

Free Tools

  • Interaction Checker
  • Dose Checker
  • Form Comparison

Field Guides

  • Magnesium for sleep
  • Reading labels
  • Interaction checker
  • Dose checker
  • Harmful ingredients
  • Proprietary blends
  • Stack building
  • Scan without barcode
  • All guides →
© 2026 BioStacks. All rights reserved. Not medical advice.