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Home/Vacuum Sealers/Nutricost KSM-66 Ashwagandha Root Extract 600mg, 60 Capsules, 5% Withanolides with BioPerine
Nutricost KSM-66 Ashwagandha Root Extract 600mg, 60 Capsules, 5% Withanolides with BioPerineProduct image from current catalog data
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Nutricost KSM-66 Ashwagandha Root Extract 600mg, 60 Capsules, 5% Withanolides with BioPerine

By Nutricost

9.8Excellent matchFeature and use-case score

The only listing here that states the extract amount, the withanolide percentage and the resulting milligrams per capsule, and does the arithmetic for you.

  • 600mg KSM-66 ashwagandha root extract per serving, with 60 servings per bottle
  • 5% withanolides stated, and the resulting 30mg of withanolides per capsule given outright
  • Made in an NSF-certified, GMP-compliant, FDA-registered facility
See Price at the store →Price, delivery, and configuration can change at the retailer.
ByTopFiveFind Research Desk

How this was made: AI-assisted research and drafting organize the evidence. Exact product identity, source claims, owner-feedback patterns, conflicts, and publication checks are documented before indexing. No hands-on or human-expert testing is claimed unless a page explicitly shows that evidence. Read the full methodology.

Best fitClearest Label
CategoryVacuum Sealers
BrandNutricost
Catalog score9.8 / 10

Product overview

Nutricost KSM-66 Ashwagandha 600mg: What to Know

This is the label other products in this category should be measured against, and the reason is that it answers every question in order.

The extract amount is stated: 600mg of KSM-66 ashwagandha root extract per serving, with 60 servings per bottle and 60 vegetarian capsules, which also makes the serving one capsule and the cost per serving directly calculable.

The standardization is stated: 5 percent withanolides. And then the listing does the thing almost nobody does, converting that into the figure you actually want, 30mg of withanolides per capsule. That single bullet is the difference between a specification and a number you have to trust, and it is the clearest potency statement in this guide.

The manufacturing credential is specific rather than decorative: made in an NSF-certified, GMP-compliant, FDA-registered facility. All three of those are real, named, checkable things, and they are a considerably stronger statement than the unattributed laboratory tested language used elsewhere in this category.

It also includes BioPerine, a branded black-pepper extract included for absorption, which the listing states plainly as an added ingredient rather than burying it.

Two honest notes. The detail table's allergen-information field reads Milk, which is unexpected on a plant root extract in vegetarian capsules and is worth confirming with the seller if dairy matters to you; it may be a facility statement or a field error, and the listing's bullets do not mention it. And BioPerine increases the absorption of substances taken alongside it, which includes medicines, so it is specifically worth mentioning to a pharmacist if you take anything regularly.

Key Listed Features

01

600mg KSM-66 ashwagandha root extract per serving, with 60 servings per bottle

02

5% withanolides stated, and the resulting 30mg of withanolides per capsule given outright

03

Made in an NSF-certified, GMP-compliant, FDA-registered facility

04

Includes BioPerine, a branded black-pepper extract, stated as an added ingredient

Buying questions

Quick Answers

What does BioPerine actually do?

It is a standardized extract of black pepper whose active compound, piperine, slows the metabolism of various substances in the gut and liver so that more of what you took reaches the bloodstream. That is why it appears in supplements with poorly absorbed ingredients. The important consequence is that it does not discriminate: piperine can increase the absorption of medicines as readily as of supplement ingredients, which can shift a prescription dose unintentionally. It is not a reason to avoid the product, but it is a reason to mention it alongside your medicine list to a pharmacist.

Is NSF certification worth anything?

It is one of the more meaningful marks in this industry because NSF is an independent certifier that audits facilities and, in some programmes, tests finished products against their labels. Combined here with GMP compliance and FDA facility registration, the set describes oversight of how the product is made, which is the part of supplement quality that is actually regulated. None of it is a statement that ashwagandha does anything. What it addresses is the question of whether the bottle contains what the label says, which in a category with widespread adulteration is the question worth answering first.