Ashwagandha KSM-66
“Really the best quality ashwagandha I have found so far.”
KSM-66 Ashwagandha, standardized to 5% withanolides. An adaptogenic herb.
KSM-66, the most clinically studied ashwagandha
Standardized to 5% withanolides
Supports stress resilience and sleep
Root only, full-spectrum extract
Third-party lab tested for purity
3 payments of €11,50 at 0% interest with Klarna More information
Ashwagandha (Withania somnifera) is an adaptogenic herb used in Ayurveda for centuries.
Ours is KSM-66, the most clinically studied ashwagandha, made from the root only and standardized to 5% withanolides. Each serving of 2 capsules delivers 600 mg (300 mg per capsule).
Full-spectrum, root only, and third-party lab tested for purity. No fillers, no additives, no compromises.
| Element | Amount per serving | % Daily Value |
|---|---|---|
| KSM-66 Ashwagandha root extract | 600 mg | n/a |
| of which withanolides | 5% | n/a |
Standardized extract specification. FLAG (Nils): confirm withanolide % against the COA.
Suggested use: 2 capsules with a meal (600 mg per serving)
Take 2 capsules daily with water, preferably with a meal.
Ashwagandha is a food supplement, so take it daily and consistently as part of your routine.
Store in a cool, dry place away from sunlight.
Keep tightly closed when not in use.
KSM-66 Extract
We use KSM-66, the most clinically studied ashwagandha, standardized to 5% withanolides for a consistent, verified dose in every serving.
Root Only
Made exclusively from the ashwagandha root, never the leaf. A full-spectrum extract that keeps the traditional composition used in Ayurveda.
Adaptogenic Herb
Ashwagandha acts as an adaptogen and supports stress resilience. A herb, not a mushroom.
No Fillers or Additives
Just KSM-66 ashwagandha root extract. No fillers, no additives, no preservatives. Vegan and gluten-free.
Third-Party Lab Tested
Quality-tested in Europe for purity, including a heavy-metal screen, with a Certificate of Analysis available so you can verify the results yourself.
Every batch of our Ashwagandha is third-party tested by Eurofins, one of Europe's leading independent laboratories.
Testing verifies the withanolide content and screens for heavy metals, with a Certificate of Analysis available so you can check the results yourself.
No fillers, no additives, no preservatives. Just KSM-66 ashwagandha root extract, root only.
This product is a food supplement and is not intended to diagnose, treat, cure, or prevent any disease.
Every batch is third-party tested by Eurofins for purity and potency.
We use KSM-66, standardized to 5% withanolides, root only, with no fillers, additives, or preservatives. Each batch is screened for heavy metals and contaminants before it ships.
• Do not exceed the recommended dosage.
• Keep out of reach of young children. Store in a dry, dark place at room temperature (15 to 25°C).
• Consult a healthcare professional if you are pregnant, planning to become pregnant, or breastfeeding.
• Consult a healthcare professional before use if you take thyroid, blood sugar, blood pressure, or sedative medication.
• A healthy lifestyle and a balanced, varied diet are important. This supplement is not a substitute for them.
This product is a food supplement and is not intended to diagnose, treat, cure, or prevent any disease.
Dutch quality 🇳🇱
Ashwagandha is an adaptogenic herb prized for centuries. Human Pro uses KSM-66, the most clinically studied ashwagandha extract, standardized to 5% withanolides.
Every batch is the patented KSM-66 extract, made from the root only and standardized to 5% withanolides. It is third-party quality-tested in Europe for purity, including a heavy-metal screen, before it reaches you.
Sourced responsibly, standardized for consistency, and tested before it ships.
KSM-66 clinical quality
Standardized to 5% withanolides
Root only, full-spectrum
Third-party tested in Europe
What is in a serving?
Each serving of Ashwagandha delivers 600 mg of KSM-66 root extract, the most clinically studied ashwagandha, standardized to 5% withanolides. Full-spectrum and made from the root only, never the leaf.
Withanolides
The active compounds in ashwagandha and the standard quality marker.
5%
KSM-66
The patented, most clinically studied ashwagandha extract.
Patented
Root Only
Made from the ashwagandha root, never the leaf.
Root
Full-Spectrum
Keeps the natural balance of the whole root, as used in Ayurveda.
Whole root
Not all ashwagandha is equal
| Human Pro Ashwagandha | Other ashwagandha | |
|---|---|---|
Extract type
Why does the extract matter?KSM-66 is a patented, full-spectrum ashwagandha root extract and the most clinically studied ashwagandha. Generic extracts are often unbranded with no published standardization or clinical backing. |
KSM-66, patented
KSM-66, patentedWhy does the extract matter?KSM-66 is a patented, full-spectrum ashwagandha root extract and the most clinically studied ashwagandha. Generic extracts are often unbranded with no published standardization or clinical backing. |
Generic, unbranded Generic, unbranded extract |
Withanolides
What are withanolides?Withanolides are the active compounds in ashwagandha and the standard quality marker. A standardized extract guarantees a consistent amount in every serving; unstandardized extracts can vary batch to batch. |
5%, standardized
Standardized to 5% withanolidesWhat are withanolides?Withanolides are the active compounds in ashwagandha and the standard quality marker. A standardized extract guarantees a consistent amount in every serving; unstandardized extracts can vary batch to batch. |
Unstandardized or low Often unstandardized or low |
Part used
Why root only?The root is the part traditionally used in Ayurveda. Some cheaper extracts add leaf, which carries a different, more concentrated withanolide profile that is not part of the traditional preparation. |
Root only
Made from the root onlyWhy root only?The root is the part traditionally used in Ayurveda. Some cheaper extracts add leaf, which carries a different, more concentrated withanolide profile that is not part of the traditional preparation. |
Root + leaf Often root and leaf |
Spectrum
What is full-spectrum?A full-spectrum extract keeps the natural balance of compounds found in the whole root, rather than isolating or spiking a single fraction. |
Full-spectrum
Full-spectrum extractWhat is full-spectrum?A full-spectrum extract keeps the natural balance of compounds found in the whole root, rather than isolating or spiking a single fraction. |
Often isolated Often isolated or spiked |
Lab tested
What does lab tested mean?Independent third-party testing verifies the withanolide content and screens for contaminants like heavy metals. Many supplements skip this step or rely on supplier-provided data. |
Yes, by Eurofins
Lab tested by EurofinsWhat does lab tested mean?Independent third-party testing verifies the withanolide content and screens for contaminants like heavy metals. Many supplements skip this step or rely on supplier-provided data. |
No Not lab tested |
| No fillers, additives or preservatives | Yes No fillers, additives or preservatives | Often present Fillers often present |
| Vegan / Gluten-free | Yes Vegan and gluten-free | Varies |
| Money-back guarantee | 30 days, no questions asked 30 days money-back guarantee | No No guarantee |
Human Pro Ashwagandha is KSM-66, the most clinically studied ashwagandha, a full-spectrum root-only extract standardized to 5% withanolides and third-party lab tested for purity. Many other ashwagandha products use generic, unbranded extracts that are unstandardized, may include leaf as well as root, and skip independent lab verification.
120 capsules · 2 Months Supply
Quality That Stands Out
“Really the best quality ashwagandha I have found so far. Great product!”
Product Reviews
What Human Pro customers say about this product
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Good produkt and i will by again
Ik kreeg dit oorspronkelijk van een vriendin om eens te proberen en gebruik het ondertussen al een tijdje. Sindsdien slaap ik beter en dieper, en word ik minder moe wakker. Ook in periodes van stress neem ik er eentje, en merk ik dat het snel resultaat geeft.
Intussen heb ik het al aan verschillende mensen aanbevolen. Voor mij is dit absoluut de beste keuze en een product waar ik erg tevreden over ben.
Hi Fati
Wat leuk dat een vriendin je hierop heeft gebracht, Fati. Beter en dieper slapen, minder moe wakker worden... daar worden we blij van. En dat je het ondertussen al aan anderen aanbeveelt, betekent veel voor ons. Succes met je journey.
How nice that a friend introduced you to this, Fati. Sleeping better and deeper, waking up less tired... that makes us happy. And the fact that you're already recommending it to others means a lot to us. Enjoy the journey ahead. Flow strong, Team Microdose Pro
I have also only taken this supplement for just over a week and am starting to notice better sleep. I am gradually waking up less times in the middle of the night for no reason, and feeling more rested in the mornings.
Love hearing this, Lukas. Sleeping more soundly and waking up more rested is a great sign, especially this early in. Enjoy the journey ahead and keep us posted on how it develops. Flow strong, Team Human Pro
Amazing products - Youc an feel the difference from the first moment! Will be back to get more - definitely make it a daily supplement from now on
Love the energy, Konstantinos. Feeling the difference right away and making it a daily part of your routine is exactly the way to go. We'll be here when you're back for more, and enjoy the journey ahead. Flow strong, Team Human Pro
It has really made a difference in my sleep. I find myself rest much better.
Hi Rodolfo
Great to hear. Resting better and sleeping more soundly makes such a difference day to day. Enjoy the journey ahead. Flow strong, Team Human Pro
Excellent product.
Thanks for the 5 stars Brian, appreciate it.
Flow strong
Team Human Pro
Brilliant will order again
Thanks for the 5 stars and flow strong W :)
My cosrisol levels have dropped significantly. Just awesome.
Hi EFTHYMIOS great to hear our Ashwagandha is working for you. Keep up the good work and flow strong!
Game-changer
I've tried a lot and find this very high quality
Will buy more
I had severe anxiety after brain tumour surgery, after I started taking this stuff my anxiety has reduced enormously and I'm sleeping much better and for longer.
Tried many brands, this one feels most powerful!
Det er noget der virker
Hi Nick,
Det er godt at høre, når noget bare virker. Tak fordi du deler din oplevelse.
It is great to hear when something simply works. Thank you for sharing.
As always,
Shine bright. Do good. Flow strong.
Asha ✨
Eu tomo este suplemento há mais de um ano, sem duvida que a qualidade dos produtos da human pro são altos.
Hi Marisa,
Tão bom saber que já o tomas há mais de um ano e que a qualidade continua a corresponder ao que procuras. Obrigado por partilhares isso connosco.
So good to hear you have been taking it for over a year and that the quality keeps meeting your expectations. Thank you for sharing this with us.
As always,
Shine bright. Do good. Flow strong.
Asha ✨
Ich nehme es seit vielen Jahren und es ist ein Must-Have-Supplement für mich
I take for many years and is a must have suplement for me
Ik neem het al jaren en het is een must-have supplement voor mij
Pretty happy with this Ashwagandha KSM-66 Product. I feel the strength combined with tú calmness it’s giving me. Just what i needed to get my trough this stressful periode. Thanks human pro for helping me discover this🙏
We love that you are benefiting from our Ashwagandha product and it's helping you tap into your superpowers!
Long may it last :)
As always,
Shine bright. Do good. Flow strong.
Asha ✨
Ziemlich zufrieden mit diesem Ashwagandha KSM-66 Produkt. Ich spüre die Stärke kombiniert mit der Ruhe, die es mir gibt. Genau das, was ich brauchte, um durch diese stressige Phase zu kommen. Danke Human Pro, dass ihr mir geholfen habt, das zu entdecken🙏
Wir freuen uns, dass du von unserem Ashwagandha-Produkt profitierst und es dir hilft, deine Superkräfte zu entfalten!
Möge es noch lange so weitergehen :)
Wie immer,
Strahle hell. Tu Gutes. Flow strong.
Asha ✨
Why We Made This
In 2020, we launched our first mushroom brand: Microdose Pro. It became a hit, featured in Men's Health
, Wired
, Quote
, and a dedicated article on NU.nl
, the biggest news platform in the Netherlands.
In 2023, we took it further and started Human Pro, with one clear focus: natural supplements, done right.
We grow our own functional mushrooms in the Netherlands. For adaptogens like ashwagandha, where the herb simply does not grow here, we go to the source instead and pick the most clinically studied extract we can find.
For ashwagandha that means KSM-66, standardized to 5% withanolides, and third-party tested. Our mission is to educate, set a new standard, and produce the highest-quality supplements available.
We picked the one that is actually studied.
"A lot of ashwagandha online is generic, unstandardized, and you never really know what is in it. We chose KSM-66, the most clinically studied extract, root only and standardized to 5% withanolides, and we test every batch before it ships."
Frequently Asked
Questions
Ashwagandha (Withania somnifera) is an adaptogenic herb used in Ayurveda for centuries. Our extract is KSM-66, the most clinically studied ashwagandha, made from the root only and standardized to 5% withanolides. Each serving of 2 capsules delivers 600 mg (300 mg per capsule).
KSM-66 is a patented, full-spectrum ashwagandha root extract and the most clinically studied ashwagandha on the market. It is standardized to 5% withanolides and made using a root-only, green-chemistry process, keeping the natural balance of the root intact.
Withanolides are the naturally occurring active compounds in ashwagandha and the standard quality marker for the extract. Our KSM-66 is standardized to 5% withanolides, so every serving delivers a consistent, verified amount.
Yes. Ashwagandha acts as an adaptogen and supports stress resilience.* An adaptogen is a plant compound traditionally used to help the body adapt to stress.
Take 2 capsules daily with water, preferably with a meal. Ashwagandha is a food supplement, so take it consistently as part of your daily routine.
Keep a simple journal of how your daily routine feels. We recommend noting your experience when you take it and when you do not, so you can see patterns over time. Consistency matters more than any single day.
Always consult a healthcare professional before use if you are pregnant, breastfeeding, or taking medication, including thyroid, blood sugar, blood pressure, or sedative medication. Discontinue use and seek advice if you experience any adverse reaction.
Ashwagandha has been used for centuries in Ayurveda and is generally well tolerated. Our KSM-66 is made from 100% root extract with no additives. If you are pregnant, nursing, or on medication, consult a healthcare professional first.
Ashwagandha can generally be combined with other supplements. If you take medication or other concentrated botanicals, check with a healthcare professional first.