CanPrev Ashwagandha 600mg - KSM-66 Vegan | 60 Capsules
Visit the CanPrev Store| Brand | CanPrev |
| Serving | 1 capsule, once daily (600 mg KSM-66 Ashwagandha per capsule) |
| Licensed Natural Health Product | NPN 80089988 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada  |
About this item
- ONE HIGH-POTENCY CAPSULE, ONCE A DAY: 600 mg of KSM-66 ashwagandha root extract (12:1, standardized to 5.0% withanolides, equivalent to 7200 mg dried root) in a single daily vegetable capsule - no twice-daily dosing to track.
- ENERGY & STRESS RESISTANCE: Used in Herbal Medicine as an adaptogen to help increase energy and resistance to stress, including mental and physical fatigue related to stress.
- CALM WITHOUT THE CRASH: Helps relieve restlessness and/or nervousness as a calmative, and helps improve the quality of sleep.
- AEROBIC ENDURANCE & LIBIDO SUPPORT: Helps support aerobic endurance and helps support libido - authorized uses on this product's Health Canada licence.
- THYROID FUNCTION & MALE TESTOSTERONE: Helps support thyroid function and helps promote healthy testosterone production in males - real, label-authorized uses of this specific formulation.
- A DIFFERENT FORMULA FROM OUR ADRENAL CHILL LINE: This is a single-ingredient, once-daily 600 mg KSM-66 formula (NPN 80089988) - not the same product as CanPrev Adrenal Chill (NPN 80089995), which pairs a smaller 300 mg twice-daily ashwagandha dose with L-theanine.
- CLEAN, VEGAN FORMULA: Vegan vegetable capsules, non-GMO, gluten-free, dairy-free and soy-free, with no artificial colours, flavours or preservatives.
- MADE IN CANADA, LICENSED BY HEALTH CANADA: Formulated and made in Canada by CanPrev Natural Health Products Ltd. and licensed under NPN 80089988.
Product Description
Ashwagandha 600mg - High-Potency KSM-66, Once Daily
600 mg of high-concentration KSM-66 ashwagandha root extract (12:1, standardized to 5.0% withanolides, equivalent to 7200 mg dried root) in a single vegetable capsule, taken once a day. Used in Herbal Medicine as an adaptogen to help increase energy and resistance to stress, help relieve restlessness and/or nervousness, help improve sleep quality, help support aerobic endurance and libido, help support thyroid function, and help promote healthy testosterone production in males. Licensed Natural Health Product. Licensed Natural Health Product NPN 80089988.
600 mg d'extrait de racine d'ashwagandha KSM-66 à haute concentration (12:1, normalisé à 5,0 % withanolides, équivalent à 7200 mg de racine sèche) dans une seule capsule végétale, à prendre une fois par jour. Utilisé en phytothérapie comme adaptogène pour aider à augmenter l'énergie et la résistance au stress, aider à soulager l'agitation et/ou la nervosité, aider à améliorer la qualité du sommeil, aider à soutenir l'endurance aérobique et la libido, aider à soutenir la fonction thyroïdienne, et aider à promouvoir la sécrétion saine de testostérone chez les mâles. Produit de santé naturel homologué.
One Capsule, Six Real Uses
600 mg KSM-66 Ashwagandha (12:1 extract), a single vegetable capsule once daily
600 mg of High-Potency KSM-66 Ashwagandha
Each vegetable capsule delivers 600 mg of a 12:1 root-only extract standardized to 5.0% withanolides (equivalent to 7200 mg dried root) - the full daily dose in a single capsule, once a day.
Six Authorized Uses, One Ingredient
Licensed by Health Canada for energy and stress resistance, calm, sleep quality, aerobic endurance, libido, thyroid function support, and healthy testosterone production in males - all from one single-ingredient formula.
What Ashwagandha 600mg Supports
Research on KSM-66 ashwagandha spans stress, sleep, thyroid, exercise and vitality - CanPrev Ashwagandha 600mg's own claims are the uses authorized under NPN 80089988.
Energy & Stress Resistance
Used in Herbal Medicine as an adaptogen to help increase energy and resistance to stress, including mental and physical fatigue related to stress.
Calm, Without Sedation
Helps relieve restlessness and/or nervousness as a calmative, supporting a steadier day.
Restorative Sleep
Helps improve the quality of sleep - a licensed use backed by clinical research on ashwagandha root extract.
Aerobic Endurance
Helps support aerobic endurance, studied in athletic and physically active adults.
Libido Support
Helps support libido - a licensed use studied in both men and women.
Thyroid Function
Helps support thyroid function - one of the seven authorized uses on this product's Health Canada licence.
Healthy Male Testosterone
Helps promote healthy testosterone production in males, alongside broader vitality support.
CanPrev Ashwagandha: Supplement Facts
Each capsule contains:
- KSM-66 Ashwagandha (root, Withania somnifera, 12:1 extract) Standardized to 5.0% withanolides, equivalent to 7200 mg dried root600 mg
Non-Medicinal Ingredients: Brown rice flour, hypromellose, magnesium stearate.
Recommended Use or Purpose: Used in Herbal Medicine as an Adaptogen to help increase energy and resistance to stress (e.g. in cases of mental and physical fatigue related to stress). Helps to relieve restlessness and/or nervousness (calmative). Helps to improve the quality of sleep. Helps to support aerobic endurance. Helps support libido. Helps to support thyroid function. Helps promote healthy testosterone production in males.
Recommended Dose (Adults 18 years and older): Take 1 capsule per day, or as directed by a health care practitioner. Recommended Duration of Use: No specific duration restriction is established for this product under its Health Canada licence; as with any natural health product, consult a health care practitioner about use beyond a few months.
Cautions and Warnings: Consult a health care practitioner prior to use if you are pregnant or breastfeeding, if you have a thyroid disorder, a prostate condition, or a psychological disorder or condition such as frequent anxiety or depression. Avoid using with alcohol or with other drugs or natural health products that have sedative properties. Do not use if the safety seal is broken. Keep out of reach of children. Store in a cool, dry place.
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. This item is sold and shipped by Amazon.ca.
Chaque capsule contient :
- KSM-66 Ashwagandha (racine, Withania somnifera, extrait 12:1) Normalisé à 5,0 % withanolides, équivalent à 7200 mg de racine sèche600 mg
Ingrédients non médicinaux : Farine de riz brun, hypromellose, stéarate de magnésium.
Usage ou fins recommandés : Utilisé en phytothérapie comme adaptogène pour aider à augmenter l'énergie et la résistance au stress (par exemple, en cas de fatigue mentale et physique liée au stress). Aide à soulager l'agitation et/ou la nervosité (calmant). Aide à améliorer la qualité du sommeil. Aide à soutenir l'endurance aérobique. Aide à soutenir la libido. Aide à soutenir la fonction thyroïdienne. Aide à promouvoir la sécrétion saine de testostérone chez les mâles.
Dose recommandée (adultes de 18 ans et plus) : Prendre 1 capsule par jour, ou selon les directives d'un praticien de soins de santé. Durée d'utilisation recommandée : aucune restriction de durée particulière n'est établie pour ce produit en vertu de sa licence de Santé Canada; comme pour tout produit de santé naturel, consultez un praticien de soins de santé pour un usage prolongé au-delà de quelques mois.
Mises en garde : Consultez un praticien de soins de santé avant l'usage si vous êtes enceinte, vous allaitez, vous avez un trouble thyroïdien, une affection de la prostate, ou un trouble psychologique tel que l'anxiété fréquente ou la dépression. Évitez l'usage concomitant d'alcool ou d'autres médicaments ou produits de santé naturels ayant des propriétés sédatives. Ne pas utiliser si le sceau de sécurité est brisé. Garder hors de la portée des enfants. Conserver dans un endroit frais et sec.
NPN 80089988
Add CanPrev Ashwagandha 600mg to your daily routine
Get CanPrev Ashwagandha 600mg on Amazon.ca - fast, protected delivery.
Get it on Amazon.caWhy CanPrev Ashwagandha 600mg
A single-ingredient, once-daily 600 mg KSM-66 ashwagandha formula with six real, licensed uses.
600 mg KSM-66 Ashwagandha, once daily
A high-concentration, root-only 12:1 extract standardized to 5.0% withanolides - the full daily dose in a single capsule.
Six real, licensed uses
Energy and stress resistance, calm, sleep quality, aerobic endurance, libido, thyroid function, and healthy testosterone production in males - all authorized under NPN 80089988.
Single-ingredient simplicity
Just KSM-66 ashwagandha - no added L-theanine or other actives, and no twice-daily dosing to track.
Trusted Canadian brand
CanPrev - formulated and made in Canada, licensed under NPN 80089988.
How to use it
Take 1 capsule, once per day
Adults 18 years and older: take one vegetable capsule daily, or as directed by a qualified health care practitioner.
A single-capsule daily dose
Each capsule provides the full 600 mg KSM-66 ashwagandha dose - no need to split doses through the day.
A 60-day supply per bottle
60 capsules lasts 60 days at 1 capsule per day, so you can stay consistent without frequent reordering.
What the research says about KSM-66 Ashwagandha
Educational summaries of published research on ashwagandha (Withania somnifera) and KSM-66 extract; not product-specific claims. CanPrev Ashwagandha 600mg's own claims are the uses authorized under NPN 80089988: adaptogen/energy and stress resistance, calmative for restlessness/nervousness, sleep quality, aerobic endurance, libido, thyroid function, and healthy testosterone production in males.
300 mg twice daily cut stress scores and cortisol in 60 days
In a randomized, double-blind, placebo-controlled trial of 64 adults with chronic stress taking 300 mg of a high-concentration full-spectrum ashwagandha root extract twice daily (600 mg/day total), stress-assessment scores and serum cortisol were both significantly reduced versus placebo after 60 days, with only mild, comparable adverse effects in both groups.
Human RCTSame 600 mg/day total reduced stress, cortisol and food cravings
A double-blind, placebo-controlled trial of 52 adults under chronic stress taking 300 mg ashwagandha root extract twice daily found significant improvements in Perceived Stress Scale scores, food cravings, happiness and serum cortisol compared to placebo over 8 weeks.
Human RCTMeta-analysis finds the strongest stress effect at 300-600 mg/day
Pooling 12 randomized trials (1,002 participants), a systematic review found ashwagandha supplementation significantly reduced both anxiety and stress scores versus placebo, with a non-linear dose-response analysis showing the most favorable effect on stress at doses of 300-600 mg/day - the range this product's once-daily 600 mg dose falls within.
Meta-analysisSystematic review: all 5 human trials favored ashwagandha over placebo
A systematic review of five human randomized controlled trials using various ashwagandha dosages found every study reported greater improvement in anxiety or stress scale scores with ashwagandha than with placebo, though the authors flagged unclear-to-high risk of bias across the heterogeneous studies.
Systematic reviewInternational clinician taskforce: 'modestly supported' for anxiety
A joint WFSBP/CANMAT taskforce of 31 international psychiatry researchers graded ashwagandha as 'modestly supported' (Grade A evidence) for anxiety disorders in its evidence-based guidelines for nutraceuticals and phytoceuticals in psychiatric care.
Clinical guideline reviewA low dose improved anxiety and sleep scores without a cortisol change
A 2025 randomized, double-blind, placebo-controlled trial of 90 adults with mild-to-moderate stress found a low-dose (125 mg) ashwagandha formulation significantly improved Perceived Stress Scale, Beck Anxiety Inventory and Pittsburgh Sleep Quality Index scores versus placebo - though serum cortisol and salivary alpha-amylase did not differ significantly between groups, an honest reminder that not every outcome moves together.
Human RCTSix weeks improved self-reported sleep quality by 72%
In 150 adults with non-restorative sleep, a standardized ashwagandha extract taken once daily for 6 weeks produced a 72% improvement in self-reported sleep quality versus 29% for placebo, plus actigraphy-measured gains in sleep efficiency, total sleep time and sleep latency.
Human RCTRoot extract improved sleep in both healthy adults and insomnia patients
An 8-week, placebo-controlled trial in 80 participants found ashwagandha root extract significantly improved sleep-onset latency, sleep efficiency and anxiety scores, with larger gains in those with diagnosed insomnia than in healthy sleepers.
Human RCTMeta-analysis: strongest benefit at 600 mg/day or more, matching this dose
Pooling five RCTs (400 participants), a systematic review found a small but significant benefit of ashwagandha extract on overall sleep, most pronounced in adults with diagnosed insomnia, at treatment doses of 600 mg/day or more for 8 weeks or longer - the daily dose this product provides in a single capsule.
Meta-analysisSame 600 mg/day dose normalized thyroid markers in subclinical hypothyroidism
In a randomized, double-blind, placebo-controlled trial of 50 adults with subclinical hypothyroidism (elevated TSH), 8 weeks of ashwagandha root extract at 600 mg daily significantly improved serum TSH, T3 and T4 levels compared to placebo, with only a few mild, temporary adverse effects reported.
Human RCTA real case report: thyrotoxicosis after self-administered use for hypothyroidism
A published case report described a 73-year-old woman who developed thyrotoxicosis with supraventricular tachycardia after two years of self-administered ashwagandha root extract for hypothyroidism, with full resolution after stopping the supplement - illustrating why thyroid status should be monitored by a health care practitioner rather than self-managed.
Case reportAn earlier real case: thyrotoxicosis after increasing the dose for fatigue
A published case report described a healthy 32-year-old woman who developed thyrotoxicosis after increasing her ashwagandha dose for chronic fatigue, with symptoms resolving after discontinuation; the authors noted animal data suggesting ashwagandha can raise serum thyroid hormone concentrations, consistent with why this product's label advises caution for those with a thyroid disorder.
Case report300 mg twice daily improved sexual function scores in women
A prospective, randomized, placebo-controlled study of 80 women with hypoactive sexual desire disorder taking 300 mg ashwagandha root extract twice daily for 8 weeks found significant improvements in Female Sexual Function Index scores across desire, arousal, lubrication and orgasm domains, plus more satisfying sexual encounters, versus placebo.
Human RCTAn earlier pilot study found the same benefit in healthy women
In a pilot study of 50 women randomized to a high-concentration ashwagandha root extract or placebo (300 mg twice daily for 8 weeks), the treatment group showed significantly greater improvement in Female Sexual Function Index scores, sexual distress scores, and successful sexual encounters.
Human RCT300 mg twice daily improved sexual desire and semen parameters in men
An 8-week randomized, double-blind, placebo-controlled study of 100 healthy men aged 30-50 taking 300 mg ashwagandha root extract twice daily found significant improvements in semen volume, sperm concentration and morphology, sexual desire and orgasm domains of the International Index of Erectile Function, with no adverse events.
Human RCTSame 600 mg/day dose increased strength and testosterone in young men
In an 8-week randomized, double-blind, placebo-controlled trial of 57 young men undergoing resistance training, 300 mg of ashwagandha root extract twice daily (600 mg/day total) produced significantly greater gains in muscle strength (bench press, leg extension), muscle size, and serum testosterone (+96.2 ng/dL vs +18.0 ng/dL for placebo) compared to placebo.
Human RCT8 weeks significantly improved VO2 max in athletic adults
In 50 healthy athletic adults, 300 mg of ashwagandha root extract twice daily for 8 weeks significantly improved maximum aerobic capacity (VO2 max) and multiple stress-recovery questionnaire scores compared to placebo, alongside a significant increase in antioxidant levels.
Human RCTImproved endurance and muscle growth in both men and women
An 8-week, multicenter, randomized, double-blind, placebo-controlled trial of 80 healthy adults performing resistance training found ashwagandha root extract (300 mg twice daily) produced significantly greater gains in cardiorespiratory endurance (VO2), strength and muscle girth than placebo, in both male and female participants.
Human RCT8-week safety study: no thyroid, liver or hematological abnormalities
A randomized, double-blind, placebo-controlled safety study in 80 healthy adults (40 men, 40 women) found no clinically significant changes in hematological parameters, liver biochemistry or thyroid hormonal profile with ashwagandha root extract taken at 300 mg twice daily for 8 weeks; no adverse events were reported.
Human RCT12-month observational study: testosterone rose, cortisol fell, no liver signal
In a 12-month, multi-center observational safety study of 191 adults, long-term ashwagandha root extract use was associated with only 18 mild, self-resolving adverse events, no clinically significant change in liver enzymes, a significant decrease in serum cortisol, and a significant increase in serum testosterone, alongside improved quality-of-life scores.
Long-term safety studyA real published case underscores caution in pre-existing liver disease
A 2025 case report described a patient with a pre-existing chronic liver condition who developed acute-on-chronic liver failure after taking ashwagandha, illustrating why people with existing liver disease should be especially cautious with any herbal supplement and discuss use with a health care practitioner first.
Case reportA 3,000-year-old Rasayana examined through a modern lens
A comprehensive ethnopharmacology review traces ashwagandha's documented use across classical Ayurvedic texts (Charaka Samhita, Susruta Samhita) as Balya (strength-promoting), Brusya (sexual performance enhancer) and Rasayana, cross-referenced against its modern phytochemical and clinical-trial evidence base.
ReviewA comprehensive look at ethnopharmacology, phytochemistry and toxicology
A wide-ranging review of Withania somnifera's traditional use, phytochemistry and pharmacological activities found potent bioactivity across anti-inflammatory, neuroprotective and adaptogenic domains, while also surveying toxicological considerations for safe use.
ReviewWithanolides: the steroidal lactones behind ashwagandha's activity
An updated phytochemistry review catalogues withanolides - a family of roughly 300 naturally occurring C-28 steroidal lactones - as the primary bioactive compounds in ashwagandha, with withaferin-A and withanolide-D identified as the two key constituents behind most of its biological activity, providing the chemical basis for standardizing extracts like KSM-66 to a specific withanolide percentage.
ReviewFrequently asked questions
How do I take CanPrev Ashwagandha 600mg?
Adults 18 years and older take 1 capsule per day, or as directed by a qualified health care practitioner. Do not exceed the recommended dose unless instructed by a health care practitioner.
What's in each capsule?
Each capsule contains 600 mg of KSM-66 ashwagandha (root, Withania somnifera, 12:1 extract equivalent to 7200 mg dried root, standardized to 5.0% withanolides). Non-medicinal ingredients are brown rice flour, hypromellose and magnesium stearate.
Is this the same product as CanPrev Adrenal Chill?
No. This product (NPN 80089988) is a single-ingredient, once-daily 600 mg KSM-66 ashwagandha formula. CanPrev Adrenal Chill (NPN 80089995) is a different, separately licensed product that pairs a smaller 300 mg twice-daily ashwagandha dose with 100 mg L-theanine per capsule. They share the same KSM-66 ashwagandha ingredient but are distinct formulas with their own NPNs and dosing.
Will this help with sleep and stress?
It is used in Herbal Medicine as an adaptogen to help increase energy and resistance to stress, and helps relieve restlessness and/or nervousness as a calmative, and helps improve the quality of sleep - all authorized uses on this product's Health Canada licence.
Can I take this if I have a thyroid condition or a psychological condition?
Consult a health care practitioner before use if you have a thyroid disorder, a prostate condition, or a psychological disorder or condition such as frequent anxiety or depression.
Can I take this if I'm pregnant or breastfeeding?
This product's label advises consulting a health care practitioner before use if pregnant or breastfeeding.
Is it vegan and allergen-friendly?
Yes - the capsules are vegan, non-GMO, gluten-free, dairy-free and soy-free, with no artificial colours, flavours or preservatives.
Is CanPrev Ashwagandha 600mg made in Canada?
Yes. It is formulated and made in Canada by CanPrev Natural Health Products Ltd. (Scarborough, ON) and licensed by Health Canada under NPN 80089988.
Add CanPrev Ashwagandha 600mg to your daily routine
Get CanPrev Ashwagandha 600mg on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80089988. Used in Herbal Medicine as an adaptogen to help increase energy and resistance to stress (e.g. in cases of mental and physical fatigue related to stress); helps relieve restlessness and/or nervousness (calmative); helps improve the quality of sleep; helps support aerobic endurance; helps support libido; helps support thyroid function; helps promote healthy testosterone production in males. Research summaries concern KSM-66 ashwagandha generally and are educational, not product-specific claims. Read and follow the label. Consult a health care practitioner before use if you are pregnant, breastfeeding, or have a thyroid disorder, a prostate condition, or a psychological disorder or condition such as frequent anxiety or depression. Avoid combining with alcohol, other drugs, or natural health products with sedative properties. Results may vary.
Important information
Safety Information
Cautions and Warnings: Consult a health care practitioner prior to use if you are pregnant or breastfeeding, if you have a thyroid disorder, a prostate condition, or a psychological disorder or condition such as frequent anxiety or depression. Avoid using with alcohol or with other drugs or natural health products that have sedative properties. Do not use if the safety seal is broken. Keep out of reach of children. Store in a cool, dry place.
Indications
Recommended Use or Purpose: Used in Herbal Medicine as an Adaptogen to help increase energy and resistance to stress (e.g. in cases of mental and physical fatigue related to stress). Helps to relieve restlessness and/or nervousness (calmative). Helps to improve the quality of sleep. Helps to support aerobic endurance. Helps support libido. Helps to support thyroid function. Helps promote healthy testosterone production in males.
Ingredients
Medicinal Ingredients (each capsule contains): KSM-66 Ashwagandha (root, Withania somnifera) 12:1 extract equivalent to 7200 mg dried root, standardized to 5.0% withanolides, 600 mg. Non-medicinal Ingredients: Brown rice flour, hypromellose, magnesium stearate.
Directions
Recommended Dose (Adults 18 years and older): Take 1 capsule per day, or as directed by a health care practitioner. Recommended Duration of Use: No specific duration restriction is established for this product under its Health Canada licence; as with any natural health product, consult a health care practitioner about use beyond a few months.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. This item is sold and shipped by Amazon.ca.