20% discount

Ashwagandha KSM-66 Capsules 500 mg Organic

Ashwagandha KSM-66 is an extract obtained from the root of the Withania somnifera plant.

  • High-quality, natural KSM-66 extract with no additives.
  • Vegan capsules – easy to take and gentle on the stomach.
  • Ashwagandha helps the body cope with stress*
  • Ashwagandha helps maintain mental balance*
Regular price
€ 15,96
Regular price
€ 19,95
Sale price
€ 15,96
Unit price
€ 0,27  for  item
In stock - Ordered before 23:45, shipped today
Free shipping on orders over €49
Third-party lab tested
30-day money-back guarantee

Product details

Organic Ashwagandha KSM-66 capsules 500 mg

Our ashwagandha capsules contain 500 mg of organic KSM-66® extract from the root of Withania somnifera per capsule, in a plant-based HPMC capsule. No fillers and no artificial additives. Vegan and independently tested for quality and purity.

What is KSM-66?

KSM-66® is a brand name for an ashwagandha extract made exclusively from the root, without the leaves of the plant. It is one of the best-known and most researched ashwagandha extracts in the world. Ashwagandha itself is a shrub from the nightshade family that has been used in Ayurveda for thousands of years.

Why GOYU ashwagandha KSM-66?

  • KSM-66® extract: a well-known, standardised root extract.
  • Root only: no leaf extract.
  • Organic: of organic origin.
  • One capsule a day: 500 mg of extract.
  • Lab tested: independently tested for quality and purity.

How do you use ashwagandha KSM-66?

Take 1 capsule once a day with water, preferably with or straight after a meal.

Frequently asked questions about KSM-66

How is it different from regular ashwagandha capsules?
These capsules contain a concentrated root extract. Our Organic Ashwagandha Capsules 500 mg contain ground root.

Who should not use ashwagandha?
Do not use during pregnancy or breastfeeding, or if you have or have had a liver condition.

Are these capsules vegan?
Yes. Both the extract and the HPMC capsule are plant-based.

Dosage & use

Recommended use: Take 1 capsule daily with water. Preferably during or immediately after a meal.

Warning: This dietary supplement is not a substitute for a varied diet and a healthy lifestyle. Do not exceed the recommended daily dosage. Consult your doctor before use if you are pregnant, breastfeeding, taking medication, or have a medical condition. Do not use if you have or have had a liver condition, including cirrhosis.

Storage advice: Keep out of reach of children. Store in a dry and cool place. Do not use if the seal is broken.

Nutritional Information

Ingredients: Organic Ashwagandha root extract KSM-66® (Withania somnifera), HPMC (capsule).

Shipping information

We ship to all countries in the EU + the UK with the shipping options below. Whenever possible, all products are shipped as mailbox parcels.

Netherlands, Belgium & Germany Order value Shipping costs
Standard (1-3 business days*) Over € 49,- Free
Standard (1-3 business days*) Under €49,- € 4,95

Denmark & Sweden Order value Shipping costs
Standard (2-3 business days*) Over € 49,-
Free
Standard (2-3 business days*) Under € 49,-
€5.95



UK Order value Shipping costs
Standard (2-3 business days*) Over £ 49,-
Free
Standard (2-3 business days*) Under £ 49,-
€4,95

 

Rest of Europe Order value Shipping costs
Standard Over €49,-
Free
Standard Under €49,- Calculated at checkout based on destination.

*Orders placed Monday through Friday before 23:45 are shipped the same day.

No artificial colorantsNo artificial flavorings100% plant-basedLab tested for quality

Trusted by more than 250,000 fans

Discover why people choose the quality of GOYU every day.

Great that the products have been tested

The test results are clearly provided, so I can really trust this product.

Peter23 July 2026

Delivered through the letterbox

The product was delivered to my mailbox the next day.

Sascha01 July 2026

Clean label products

Finally, a brand that actually has its products tested and doesn’t put any junk in them.

Milan12 August 2026

Excellent care

Fast delivery, well packaged, and a pure product.

MeneertjeMenno28 July 2022

Completely satisfied.

After receiving the wrong order, I quickly got the correct one, plus a free product of my choice. Now that’s what I call service.

Patrick Scheeren07 July 2025

Conveniently and ecologically packaged!

The packaging is convenient. It fits perfectly through the letterbox. The delivery was perfectly on time, and the information provided is accurate and clear. Perfect.

Longwater04 May 2024

Price and quality are excellent, with fast delivery.

User-friendly online store, fast delivery at a good price, top-quality product

Ruud14 May 2024

Great!

Fast delivery, well packaged, great quality. Absolutely fantastic!! :D

RenateStephanie04 April 2024

Satisfied customer

Speed / quality / clarity. Everything was to my satisfaction, and I have no complaints.

MikevWely26 August 2024

Great product

Great product and fast delivery, as always. I enjoy ordering from this company.

Oksanaa12 July 2025

Why you choose GOYU

Natural standard

Our ingredients are pure, free of fillers, and sourced from natural sources.

Packaged in Europe

Our raw materials come from all over the world and are carefully packaged and inspected in Europe.

Tested by third parties

We regularly have our products tested by independent laboratories to ensure purity and quality.

Frequently Asked Questions

Our team of nutrition experts is here for you.

What does Ashwagandha KSM-66 do?

The following health claims apply to ashwagandha:

  • Ashwagandha helps the body cope with stress*
  • Ashwagandha helps maintain mental balance*
  • Ashwagandha supports falling asleep*
  • Ashwagandha helps maintain energy levels*
  • Ashwagandha contributes to relaxation*

*Health claim pending approval by the European Commission.

What is Ashwagandha KSM-66?

KSM-66 is a standardized extract from the root of the ashwagandha plant (Withania somnifera). Our capsules contain 500 mg of organic KSM-66 root extract.

What is the difference between Ashwagandha KSM-66 and regular ashwagandha?

KSM-66 is a specific branded extract obtained exclusively from the root. Our regular ashwagandha capsules and powder contain organic root powder with 5% withanolides.

When should you take Ashwagandha KSM-66 capsules?

Take 1 capsule once daily with water, preferably during or immediately after a meal.

Who are Ashwagandha KSM-66 capsules not suitable for?

Do not use the capsules if you have or have had a liver disease, including cirrhosis. If you are pregnant, breastfeeding, taking medication, or have a medical condition, consult your doctor first.

Are your products tested by an independent laboratory?

We regularly have products tested for quality and purity by accredited laboratories such as Eurofins or Lavetan. We test for contaminants such as heavy metals or pesticide residues.

Which payment methods do you accept?

You can pay securely with all major payment providers across Europe.

Credit cards & debit cards

  • Visa
  • Mastercard
  • American Express
  • Maestro

Digital wallets

  • Apple Pay
  • Google Pay
  • Shop Pay

Local payment methods (Benelux)

  • iDEAL
  • Bancontact

Other

  • PayPal
  • Klarna
How can I contact customer service?

Our customer service team is here for you via the contact form or send an email to support@getgoyu.com.

Are your products made in the Netherlands/EU?

The ingredients for our products come from all over the world and are packaged, tested, and inspected within Europe.

What is your return policy?

We offer a 30-day money-back guarantee. We are confident in the quality of our products, which is why you can try the product for 30 days. If you are not satisfied with your purchase, you can return the product within 30 days of receipt for a full refund of the purchase price.

Read more about this policy here

What does the asterisk next to the health claims mean?

Claims marked with an asterisk are pending final approval by the European Commission. They may be used under the European transitional arrangement for plant substances.