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Nutricost

Nutricost KSM-66 Ashwagandha 600 mg 60 Capsules

  • Special Ingredients: KSM-66
  • Item Form: Capsules
  • Dosage Form: Capsule
  • Diet Type: Gluten Free

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A standardized, high-demand KSM-66 ashwagandha with an absorption aid built in, though the milk allergen flag is worth a second look.

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ASIN: B079K32QB6Model: KSM-66 AshwagandhaCategory: Ashwagandha

Overview

Nutricost's KSM-66 Ashwagandha delivers 600 mg of root extract standardized to 5% withanolides per capsule, paired with BioPerine, in a 60 count veggie cap bottle.

KSM-66 is a specific, patented ashwagandha extraction method, and pairing it with BioPerine, a black pepper extract used to aid absorption, is a common formulation choice in this category. The listing flags milk as an allergen despite the gluten free claim, worth checking for anyone with a dairy sensitivity even though the capsules are veggie based. Purchase volume here is notably high relative to most items in this batch.

  • 600 mg KSM-66 ashwagandha per cap
  • 5% withanolides standardized
  • 60 veggie capsules
  • BioPerine added

Who it's for

Aimed at people specifically seeking KSM-66 branded ashwagandha rather than a generic root extract, and comfortable with a 60 day bottle at one capsule daily. Not the choice for someone who needs a dairy-free guarantee, given the milk allergen note on the label.

Pros and cons

Pros
  • Standardized to 5% withanolides
  • BioPerine included for absorption
  • Veggie capsules, gluten free
  • High recent purchase volume
Cons
  • Milk listed as an allergen
  • 60 day supply at one cap daily

Performance notes

Standardizing to 5% withanolides gives a consistent active-compound level from bottle to bottle, which is the main variable in ashwagandha quality. Adding BioPerine is intended to improve absorption of co-ingested compounds, a common but not universally proven pairing in supplement formulation.

Specifications

BrandNutricost
ModelKSM-66 Ashwagandha
Dimensions & fit
Item Weight0.001 poundslower than 94% of 34 ashwagandha
Capacity & performance
Item Volume12 fl oz
Age Range DescriptionAdult
Construction & materials
Material FeaturesGenetically Modified Organism (GMO) Free, Gluten Free
Included components
Package Quantity1
Unit Count60
Other details
Special IngredientsKSM-66
Item FormCapsules
Dosage FormCapsule
Diet TypeGluten Free
Allergen InformationMilk
Total Servings Per Container60
FlavorFlavor Is Not Applicable To This Product
Container TypeBottle
Is Product ExpirableYes
Number Of Items1
Recommended Uses For ProductHigh Potency
Legal Disclaimer* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Supplement FormulationIndividual Supplement
Dose Release MethodOsmotic Release

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Frequently asked questions

What is KSM-66 in Nutricost's ashwagandha?

KSM-66 is the specific root extract used, standardized to 5% withanolides at 600 mg per capsule.

Does Nutricost's KSM-66 Ashwagandha contain dairy?

The listing notes milk as an allergen, so it is not a guaranteed dairy-free product despite the gluten free label.

How many capsules are in the Nutricost KSM-66 bottle?

The bottle holds 60 veggie capsules.