Ashwagandha KSM-66 Kapseln von GN Laboratories, 120 Kapseln mit 300 mg Extrakt pro Kapsel
GN Laboratories

Ashwagandha KSM-66® 300 mg

  • ✓ 300 mg per capsule
  • ✓ 15 mg withanolides
  • ✓ Four-month supply
€22,90
120 capsules€477,08/kg · Tax included. Shipping calculated at checkout.
🚚 In stock – delivery time: 1–3 working days
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Ashwagandha KSM-66® is a patented full-spectrum extract from the root of Withania somnifera, standardised to 5% withanolides. Each capsule delivers 300 mg of KSM-66® extract and with it 15 mg of withanolides. Ashwagandha is considered an adaptogen, a plant that supports the body through demanding phases. In Ayurveda, the sleepberry has been in use for over 3,000 years1.

One capsule a day is enough, so one tub lasts you four months. Pure really means pure here: pure root extract and a plant-based capsule shell, nothing else. For everyone who wants to stay calmer in a packed everyday life, and for athletes who take their recovery seriously.

  • More calm in dense phases: in placebo-controlled studies the extract showed better stress scores than placebo3,4
  • Sleep more calmly: stressed participants rated their sleep quality better than under placebo4
  • Full-spectrum extract, root only, obtained without chemical solvents
  • Two ingredients, nothing else: ashwagandha root extract and a plant-based capsule shell, no fillers
  • Made in Germany and lab-tested, a licensed branded raw material instead of nameless powder

Compositionper capsule%(NRV*)
Ashwagandha extract KSM-66®300 mg**
thereof withanolides15 mg**
Ingredients:
Ashwagandha root extract, capsule shell (hydroxypropyl methylcellulose).

Take 1 capsule daily with plenty of fluid.

Hersteller / Distributor

GN Laboratories Europe, London / United Kingdom

Nero Labs BV, Postbus 278, 5900AG Venlo, The Netherlands

  1. Pratte MA, Nanavati KB, Young V, Morley CP. An alternative treatment for anxiety: a systematic review of human trial results reported for the Ayurvedic herb ashwagandha (Withania somnifera). J Altern Complement Med. 2014 Dec;20(12):901-8. doi: 10.1089/acm.2014.0177. PMID: 25405876; PMCID: PMC4270108.
  2. LiverTox: Clinical and Research Information on Drug-Induced Liver Injury [Internet]. Bethesda (MD): National Institute of Diabetes and Digestive and Kidney Diseases; 2012-. Ashwagandha. 2019 May 2. PMID: 31643854.
  3. Choudhary D, Bhattacharyya S, Bose S. Efficacy and Safety of Ashwagandha (Withania somnifera (L.) Dunal) Root Extract in Improving Memory and Cognitive Functions. J Diet Suppl. 2017 Nov 2;14(6):599-612. doi: 10.1080/19390211.2017.1284970. Epub 2017 Feb 21. PMID: 28471731.
  4. Speers AB, Cabey KA, Soumyanath A, Wright KM. Effects of Withania somnifera (Ashwagandha) on Stress and the Stress- Related Neuropsychiatric Disorders Anxiety, Depression, and Insomnia. Curr Neuropharmacol. 2021;19(9):1468-1495. doi: 10.2174/1570159X19666210712151556. PMID: 34254920; PMCID: PMC8762185.
  5. Lopresti AL, Smith SJ, Malvi H, Kodgule R. An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: A randomized, double-blind, placebo-controlled study. Medicine (Baltimore). 2019 Sep;98(37):e17186. doi: 10.1097/MD.0000000000017186. PMID: 31517876; PMCID: PMC6750292.
  6. Chandrasekhar K, Kapoor J, Anishetty S. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian J Psychol Med. 2012 Jul;34(3):255-62. doi: 10.4103/0253-7176.106022. PMID: 23439798; PMCID: PMC3573577.
  7. Salve J, Pate S, Debnath K, Langade D. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-blind, Randomized, Placebo-controlled Clinical Study. Cureus. 2019 Dec 25;11(12):e6466. doi: 10.7759/cureus.6466. PMID: 32021735; PMCID: PMC6979308.
  8. Wankhede S, Langade D, Joshi K, Sinha SR, Bhattacharyya S. Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial. J Int Soc Sports Nutr. 2015 Nov 25;12:43. doi: 10.1186/s12970-015-0104-9. PMID: 26609282; PMCID: PMC4658772.
  9. Mandlik Ingawale DS, Namdeo AG. Pharmacological evaluation of Ashwagandha highlighting its healthcare claims, safety, and toxicity aspects. J Diet Suppl. 2021;18(2):183-226. doi: 10.1080/19390211.2020.1741484. Epub 2020 Apr 3. PMID: 32242751.
  10. Mishra LC, Singh BB, Dagenais S. Scientific basis for the therapeutic use of Withania somnifera (ashwagandha): a review. Altern Med Rev. 2000 Aug;5(4):334-46. PMID: 10956379
  11. Ziegenfuss TN, Kedia AW, Sandrock JE, Raub BJ, Kerksick CM, Lopez HL. Effects of an Aqueous Extract of Withania somnifera on Strength Training Adaptations and Recovery: The STAR Trial. Nutrients. 2018 Nov 20;10(11):1807. doi: 10.3390/nu10111807. PMID: 30463324; PMCID: PMC6266766.
  12. Choudhary D, Bhattacharyya S, Joshi K. Body Weight Management in Adults Under Chronic Stress Through Treatment With Ashwagandha Root Extract: A Double-Blind, Randomized, Placebo-Controlled Trial. J Evid Based Complementary Altern Med. 2017 Jan;22(1):96-106. doi: 10.1177/2156587216641830. Epub 2016 Apr 6. PMID: 27055824; PMCID: PMC5871210.
  13. Lopresti AL, Drummond PD, Smith SJ. A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha ( Withania somnifera) in Aging, Overweight Males. Am J Mens Health. 2019 Mar-Apr;13(2):1557988319835985. doi: 10.1177/1557988319835985. PMID: 30854916; PMCID: PMC6438434.
  14. Chukwuma CI, Matsabisa MG, Ibrahim MA, Erukainure OL, Chabalala MH, Islam MS. Medicinal plants with concomitant anti-diabetic and anti-hypertensive effects as potential sources of dual acting therapies against diabetes and hypertension: A review. J Ethnopharmacol. 2019 May 10;235:329-360. doi: 10.1016/j.jep.2019.02.024. Epub 2019 Feb 12. PMID: 30769039
  15. Durg S, Bavage S, Shivaram SB. Withania somnifera (Indian ginseng) in diabetes mellitus: A systematic review and meta-analysis of scientific evidence from experimental research to clinical application. Phytother Res. 2020 May;34(5):1041-1059. doi: 10.1002/ptr.6589. Epub 2020 Jan 23. PMID: 31975514.
  16. Panossian A, Brendler T. The Role of Adaptogens in Prophylaxis and Treatment of Viral Respiratory Infections. Pharmaceuticals (Basel). 2020 Sep 8;13(9):236. doi: 10.3390/ph13090236. PMID: 32911682; PMCID: PMC7558817.
  17. Khan S, Malik F, Suri KA, Singh J. Molecular insight into the immune up-regulatory properties of the leaf extract of Ashwagandha and identification of Th1 immunostimulatory chemical entity. Vaccine. 2009 Oct 9;27(43):6080-7. doi: 10.1016/j.vaccine.2009.07.011. Epub 2009 Jul 21. PMID: 19628058.
  18. Vetvicka V, Vetvickova J. Immune enhancing effects of WB365, a novel combination of Ashwagandha (Withania somnifera) and Maitake (Grifola frondosa) extracts. N Am J Med Sci. 2011 Jul;3(7):320-4. doi: 10.4297/najms.2011.3320. PMID: 22540105; PMCID: PMC3336880.
Item no.: 8276

What is KSM-66® Ashwagandha?

KSM-66® Ashwagandha is the most broadly studied extract in the world. It is a patented full-spectrum extract obtained exclusively from the root of Withania somnifera. Full-spectrum means: the natural profile of the plant compounds is preserved instead of isolating single compounds. Leaves do not go into the extract.

The ashwagandha extract KSM-66® is obtained without chemical solvents. The process works with water and milk alone, following the classical Ayurvedic preparation. Exactly this combination, full-spectrum plus solvent-free, makes KSM-66® ashwagandha a branded raw material in premium quality.

The plant behind the extract is known as the sleepberry. Ashwagandha is one of the best-known adaptogens of the Ayurvedic tradition1. Adaptogens are plants meant to support the body through demanding phases.

What does "standardised to 5% withanolides" mean?

Withanolides are the characteristic plant compounds of the sleepberry and are considered the value-defining constituents of an ashwagandha extract2. Standardised means: every batch is measured by HPLC and adjusted to the same content.

Each capsule contains 300 mg of standardised KSM-66® extract with 5% withanolides. That makes 15 mg of withanolides per capsule, the same in every batch. Your next tub delivers exactly the same amount as this one. With ground root powder, the withanolide content varies from harvest to harvest. That is why there is usually no number on those labels at all.

KSM-66® or plain ashwagandha: what is the difference?

The difference lies in concentration and control. A KSM-66® extract bundles the plant compounds of the root and states them in milligrams. Ground root powder is simply dried, crushed root without a fixed content.

That is why the big number on some tubs is misleading. 2,000 mg of powder sounds like more than 300 mg of ashwagandha root extract, but delivers less of what matters. What counts is not the amount of plant material, but the amount of withanolides.

Ashwagandha capsules: KSM-66® extract instead of root powder

FeatureKSM-66® capsulesRoot powder
Formstandardised full-spectrum extractground root
Withanolide content5%, HPLC-verifiedusually not stated
Same in every batchyesno, varies
Plant partroot onlyoften root and leaves
Capsules per day1often 2 to 4

If you are looking for the even more concentrated extract, you will find it here: Ashwagandha Shoden® with 35% withanolides. KSM-66® has the broader study base, Shoden® the higher concentration. Both have their place.

One capsule a day, 120 capsules, four months

One capsule daily covers your daily amount. 120 capsules are thus 120 full daily doses and last you four months. Many products on the market need two capsules for the same daily amount; there, your tub is empty after two months.

The 300 mg are no random value. The published studies on this ashwagandha root extract used 250 to 600 mg daily3,4. Your daily capsule sits right in this corridor.

No measuring, no calculating, no powder in a glass.

When do you take KSM-66® Ashwagandha?

Take one capsule daily, ideally with a meal and with plenty of fluid. With a meal, the capsule sits lightly in the stomach. Choose the time of day by your goal.

  • In the evening, if you want to go into the night more calmly. In the study on stressed participants, sleep quality improved compared with placebo4
  • In the morning, if you want to get through dense workdays with more composure
  • After training, if recovery is your topic

More important than the time of day is your consistency. KSM-66® ashwagandha works through daily repetition, not through the single intake. The studies ran over eight to ten weeks3,4. Count in weeks, not days. Whoever stops after five days has never really tested the extract.

What do customers take Ashwagandha KSM-66® for?

The most common reasons are more calm in dense phases, better sleep and recovery after training. Ashwagandha is the best-known anti-stress classic from Ayurveda, and KSM-66® is the extract with the most research behind it.

In a placebo-controlled study, stressed participants took this full-spectrum root extract daily for 60 days. They showed better values on all stress scales than the placebo group3. A second study on stressed, healthy adults came to the same picture over eight weeks and additionally found less inner restlessness and better sleep quality4.

In both studies, the cortisol level was lower than under placebo at the same time3,4. Cortisol is the hormone your body releases under strain.

For athletes, another side counts. Hard training is a strain on the body, and in a study with eight weeks of strength training, participants recovered better under ashwagandha than under placebo5. That speaks for physical performance in an athlete's everyday life. That is why the tub sits next to the creatine for many.

Keep your expectations realistic. Some notice a first change after 10 to 14 days; it becomes clearer from the fourth week. Ashwagandha KSM-66® does not show itself on day two.

Who are these capsules made for?

For people who want to keep a clear head in a packed everyday life: at work, at university, in training. Many are looking for exactly that: more mental clarity on dense workdays and calmer evenings. As an Ashwagandha KSM-66® supplement, the capsule is as simple as it gets; one a day covers everything. Athletes add it in hard training blocks, because recovery is part of the programme there. If you prefer a highly concentrated product, go for Shoden®.

Pure ashwagandha root extract: two ingredients, nothing else

The ingredient list of these capsules has exactly two entries: ashwagandha root extract and the capsule shell made of hydroxypropyl methylcellulose. No filler, no anti-caking agent, no silicon dioxide. The capsule shell is plant-based, not made of gelatine.

That is not a given. Many capsules stretch the extract with rice flour or cellulose; others add vitamins so an effect can be printed on the label. Here you pay for the root, not for the filling.

The product is made in Germany, under controlled conditions and lab-tested. The raw material KSM-66® is a licensed branded raw material, not nameless powder from the commodity trade. You can see this quality on the label: the brand name and the verified amount, capsule for capsule.

Store the tub cool, dry and protected from light. That keeps the KSM-66® extract stable over the full four months.

One capsule, a sip of water, done: a supplement does not get simpler.

Goes well with: Magnesium Bisglycinate for the evening, Kreatin Tera Caps® for training and Ashwagandha Shoden® if you like it highly concentrated.

Frequently asked questions about Ashwagandha KSM-66® capsules

What exactly is KSM-66® Ashwagandha?
KSM-66® Ashwagandha is a patented full-spectrum extract from the root of the sleepberry, standardised to 5% withanolides. It comes exclusively from the root and is obtained without chemical solvents. The name stands for a licensed branded raw material, not for a variety and not for a dosage. Whoever reads KSM-66® on the label knows which content they get. With ground root powder, that number is nowhere to be found.

How many withanolides are in one capsule?
15 mg. Each capsule contains 300 mg of standardised KSM-66® extract with 5% withanolides. This amount is HPLC-verified and the same in every batch. Exactly that is the difference to root powder, whose content varies from harvest to harvest. With us, the amount is on the label, not just the plant name.

How long does one tub of Ashwagandha KSM-66® capsules last?
Four months. 120 capsules, one capsule daily, 120 full daily doses. Many products need two capsules for the same daily amount; there, your 120-count tub is empty after two months. Four months is also the period in which daily intake really shows.

When does the effect of Ashwagandha KSM-66® set in?
Count in weeks, not days. Some people notice a first change after 10 to 14 days; it becomes clearer from the fourth week. The published studies on this ashwagandha extract ran over eight to ten weeks. The effect builds up through daily intake, which is why the four-month tub is no coincidence: it covers exactly the period it takes.

Are Ashwagandha KSM-66® capsules well tolerated?
Yes, they are very well tolerated. Take the capsule ideally with a meal; that way it sits lightly in the stomach. If you take it on an empty stomach and are sensitive, simply move the intake to breakfast. These capsules are not suitable for pregnant or breastfeeding women and children. For everyone else: one capsule a day, no more needed.

Is KSM-66® Ashwagandha useful for athletes?
Yes, because hard training is stress for the body. In a study with eight weeks of strength training, participants recovered better under ashwagandha than under placebo. Add the practical point: one capsule a day, no added vitamins, no flavourings, just the pure KSM-66® extract. Many athletes therefore put the tub next to their creatine.

Are these ashwagandha capsules vegan?
Yes. The tub contains the ashwagandha root extract and a capsule shell made of hydroxypropyl methylcellulose, plant cellulose instead of gelatine. Nothing else. No filler, no anti-caking agent, no animal ingredient. You do not even have to have this discussion here.

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