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NutraBio

Ashwagandha KSM-66 600 mg

1 Capsule · 60 servings · $0.35/serving

iHerbAmazon

Best for

Stress & Mood

Ingredients (1)

KSM-66 Ashwagandha root extract

100%

Dose

600 mg

Target

300–600 mg

Form

Premium

Other Ingredients (1)

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 1-2 capsules daily between meals, or as directed by your physician.

The label says to take it on an empty stomach. What's in this one sits better with food, and you give up little by taking it that way.

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

Price Check

$20.99

$10$20$50

Near the median of 128 ashwagandha supplements

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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.

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