10 Best Ashwagandha Supplements Withanolides of 2025

Tested and Reviewed: Top 10 Ashwagandha Supplements Withanolides deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Nutricost

Nutricost KSM-66 Ashwagandha Root Extract 600mg, 60 Veggie Caps - 5% Withanolides - with BioPerine - Full-Spectrum Root Extract

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Editor's bottom line:

“This ashwagandha supplements withanolides is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

600mg of KSM-66 Ashwagandha Root Extract Per Serving (60 Servings)
60 Veggie Caps Per Bottle
5% Withanolides (30mg Per Cap)
BioPerine For Improved Absorption
Non-GMO, Gluten Free, Made in a NSF Certified, GMP Compliant, FDA Registered Facility

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Picked by 397 people today

9.5

Physician's CHOICE

Physician's CHOICE KSM-66 Ashwagandha Root Powder Extract 1,000mg - Organic - with Black Pepper for Maximum Absorption - 5% Withanolides - Stress, Mood & Athletic Support - 60 Vegan Capsules

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Main Highlights

Why Clinically Proven KSM?: Organic KSM-66 ashwagandha root extract is the most researched ashwagandha with 22 Rigorous double-blind clinical studies showing its effectiveness in supporting relaxation support, stress support, athletic support. Packaging May Vary!
5% Standardized Withanolide Content: Withanolides are the active components responsible for the effects associated with ashwagandha. Too high Withanolide content can be unpleasant, and too little can have no influence. KSM-66 is standardized at 5% to ensure that you get the same reliable dose each time.
Stress Support: A published study showed that KSM-66 supports stress. Each Ashwagandha serving comes with 1000 mg of vegan organic KSM-66 ashwagandha - One Month Supply
KSM Wellbeing: Support your overall wellbeing with KSM-66. Our Calming formula is designed to help support you adapt with what life throws your way
Sports Nutrition, Energy & Athletic Support KSM-66 is the most effective form of ashwagandha for athletes who train and compete at peak levels. KSM supports energy and assists muscle recovery

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9.5

Triquetra Health

Ashwa-70®: Ashwagandha Extract - 35% Withanolides | Max Strength, Highest Withanolide Concentration - Mood & Performance - Enhanced Absorption with BioPerine® Black Pepper (60 Capsules)

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Main Highlights

35% WITHANOLIDES CONCENTRATION - MOST POTENT ASHWAGANDHA EXTRACT: Withanolides are the active nutrient within Ashwagandha - they are what give Ashwagandha its power. Ashwa-70® contains the maximum available concentration of withanolides at 35% - with 70mg of withanolides per capsule.
CLINICALLY PROVEN TO WORK: In double-blind placebo-controlled studies, Shoden® Ashwagandha in Ashwa-70, has been shown to improve mood, support testosterone in men, improve sleep quality & potentially improve physical performance.*
MAXIMUM ABSORPTION + ENHANCED WITH BIOPERINE® Studies have shown Shoden® Ashwagandha to have significantly higher absorption than other leading forms of Ashwagandha. We add BioPerine® to enhance bioavailability further.
7X HIGHER WITHANOLIDES CONCENTRATION THAN KSM-66: Ashwa-70 provides 35% withanolide concentration compared to 5% concentration in KSM-66. Withanolides are the active nutrients in Ashwagandha.
Manufactured in the USA, GMP CERTIFIED MANUFACTURING, 3rd PARTY TESTED: Our products are produced in GMP & organic certified facilities. All products are 3rd party lab-tested to ensure purity, efficacy, and quality.

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9.2

Toniiq

Toniiq Ashwagandha – 40:1 Concentrated Extract – 25% Withanolides – Wild Harvested in India – Highly Bioavailable with Black Pepper – Third-Party Tested – 120 Capsules - 1,300mg per Serving

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Main Highlights

Ultra-Concentrated Extract: Each serving of 1,300mg Ashwagandha is standardized to a 40:1 concentration, providing the equivalent of 52,000mg of raw ashwagandha root and leaf.
High Withanolide Content: Delivers 25% withanolides, the key bioactive compounds in Ashwagandha, compared to less than 2.5% found in many other products.
Enhanced Absorption: Combined with black pepper extract (95% piperine) to further increase bioavailability.
Wild-Harvested in India: Sourced from premium Ashwagandha grown in the foothills of Central India, known for its rich natural composition.
Tested for Purity & Quality: Every batch is produced in a GMP-certified facility in the USA and tested both internally and through independent labs for active ingredient levels, contaminants, and overall purity.

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9.0

NUTRAHARMONY

Ashwagandha Supplements 1800mg - USDA Organic Ashwagandha for Women & Men - Clinically Effective Strength for Stress Relief & Sleep - Powder & Root Extract 2.5% Withanolides - Made in USA 100 Capsules

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Main Highlights

Organic Ashwagandha 1800mg experience the full strength of Ashwagandha with 900 mg of organic root powder and 900 mg of high-potency extract per serving, a powerful synergy of traditional and modern forms. A full-spectrum blend with standardized Ashwagandha extract to 2.5% Withanolides for consistent results, and enhanced with Black Pepper for optimal absorption.
Clinically Proven Stress Relief our formula delivers a clinically studied dose of Ashwagandha to help manage occasional stress. Research shows that taking 600 mg daily (300 mg twice a day) may support healthy cortisol levels, aid emotional balance & reduce feelings of tension. A gentle yet effective way to support your bodys natural stress response, calmness & clarity.
Traditional Relaxation & Sleep Support rooted in centuries of Ayurvedic wisdom, Ashwagandha has been treasured for its ability to support inner balance & natural calm. Our powerful adaptogenic blend draws on this heritage to help quiet a racing mind, ease nighttime tension, and support a deeper, more restful sleep.
USDA Organic Certified certified USDA Organic for purity and quality, made without synthetic pesticides, herbicides, or GMOs. Naturally grown and carefully processed to retain active compounds without the use of alcohol, artificial dyes, or preservatives. Proudly made in the USA with globally sourced, organic ingredients.
Trustworthy Service at NUTRAHARMONY, we stand by our products and your wellness. From carefully sourced ingredients to precision manufacturing, were here to support your health journey with Ashwagandha capsules offering dedicated customer care and supplements you can truly rely on.

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8.8

Natgrown

Natgrown Ashwagandha KSM 66 Supplement 600 mg - Stress, Mood, & Athletic Support - Organic KSM66 Root Extract with 5% Withanolides - Vegan Capsules - 60 Count

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Main Highlights

The Best Quality Ashwagandha KSM 66 Supplement - Our Supplement delivers a pure, potent dose - Made with 600 mg of clinically researched KSM-66 Ashwagandha to help support cognitive function, athletic performance, stress management, and overall well-being
Standardized 5% Withanolide Content - KSM-66 Ashwagandha is known for its high concentration of active compounds called withanolides. This ensures that you get a consistent and reliable dose of the active ingredient, which is responsible for the herb's many benefits
Supports Healthy Energy - Ashwagandha is one of the most-researched adaptogenic herbs available. We use an organic KSM-66 Ashwagandha root extract to help support healthy energy levels, mental clarity and concentration, and restful sleep
Suggested Use - As a dietary supplement, take one (1) capsule once or twice a day with a full glass of water. Best when taken as directed by a qualified healthcare professional
MADE IN THE USA - Made with Organic KSM-66 Ashwagandha. We use only the highest-quality ingredients following strict GMP Quality Standards. Our products do not contain gluten, milk, soy, tree nuts, peanuts, or wheat

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8.6

Wholesome Story

Vegan KSM 66 Ashwagandha Capsules| High Potency 5% Withanolides | Ashwagandha Root Extract Supplements | Ashwagandha 300mg | Stress Management & Well Being Support | 60 Ashwaganda Pills

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Main Highlights

Ashwagandha for Men and Women: Studies have shown that supplementing with Ashwagandha at our recommended dose can support better stress management via its ability to reduce cortisol levels in the body.*
Supports Athletic Energy & Stamina: While the scientific exploration of this use is still developing, preliminary studies have shown Ashwagandha to support cardiorespiratory endurance and stamina, thereby supporting overall athletic performance.*
Sleep Support: Research shows that Ashwagandha can support longer sleep time and better sleep quality overall.* That means more time catching Z's and less time counting sheep. Hooray!
30-Day Supply & Clean Label Project Certified: Our Pure High Quality Ashwagandha Supplement is vegan-friendly, dye-free, and Clean Label Project certified. We are also one of a few supplement brands that offer vegan-friendly plant-derived Ashwagandha Vitamin capsules.
Our Wholesome Promise: We are family-owned & proud to have our products 3P tested & certified by the Clean Label Project. We understand that each body and journey is unique. If our supplements don't work for you, let us know & we will make it right.

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8.3

DailyNutra

DailyNutra KSM-66 Ashwagandha 600mg Organic Root Extract - High Potency Supplement with 5% Withanolides | Relieves Tiredness, Supports Relaxation, Focus, Energy, & Muscle Growth (90 Capsules)

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Main Highlights

PURE AND POTENT: DailyNutras KSM-66 Ashwagandha is made from certified organic ashwagandha root, and is scientifically verified to contain 5% Withanolides. It is produced using a patented Ayurvedic method, ensuring that all the active constituents of the plant are maintained. It includes Bioperine, for increased absorption, resulting in a potent daily supplement. Each capsule contains a full 600mg, matching the dose used in over 24 published studies.
RELAXATION SUPPORT: Ashwagandha is an adaptogenic herb that is shown in human studies to support healthy relaxation levels.
ATHLETIC SUPPORT: DailyNutras KSM-66 Ashwagandha has been studied extensively, supporting endurance, strength.
ALL-NATURAL, BACKED BY SCIENCE: Our supplements are blends of premium, high-potency, plant-based extracts and are vegetarian and gluten-free, as well as free from fillers, preservatives, or synthetics. Our formulas are based on credible health studies, and every batch is made in the USA, tested for purity and potency.
SATISFACTION GUARANTEE: Most people have great success with our products, but if for any reason you are not completely satisfied with your purchase, simply return it within 60 days for a full refund. Please use it for at least 2 weeks for best results.

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8.1

Double Wood Supplements

Double Wood Supplements Ashwagandha KSM 66 Organic and Clinically Studied Extract (600mg Per Serving, 120 Capsules, 60 Servings) Adaptogen Cortisol Manager for Women and Men

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Main Highlights

ENHANCED 20:1 ASHWAGANDHA EXTRACT STRENGTH EXTRACT: Double Wood provides 500mg of a 20:1 Ashwagandha extract (Withania somnifera plant) per serving
HERBAL ADAPTOGEN SUPPLEMENT: Ashwagandha supplements are recognized as adaptogenic herbs traditionally used to support the bodys natural response to occasional stressors
SUPPORTS A SENSE OF CALM : One study on 58 individuals showed that those who took at least 250 mg of Ashwagandha extract for 8 weeks had helped the body adapt to occasional daily pressures
ROOTED IN QUALITY: Manufactured and Tested in the USA from Globally Sourced Ingredients. Double Wood's ashwagandha ksm 66 supplement is manufactured and tested for safety right here in the USA from Globally Sourced Ingredients, are non-gmo, gluten free, and organic
WE BOTTLE WELLNESS: At Double Wood we provide pure, potent supplements that deliver exceptional value, all backed by careful sourcing and rigorous third-party testing. Please reach out to us to see any of our Ashwagandha test results

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8.1

Granions

Granions KSM66 Ashwagandha Supplements - 1,050 mg, 5% Withanolides, Clinically Studied KSM-66 Root Extract Pills - Vegan Stress and Focus Support for Men and Women - 90 KSM 66 Ashwagandha Capsules

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Main Highlights

FULL SPECTRUM KSM-66 ASHWAGANDHA EXTRACT. Delivers 1,050 mg of clinically studied root-only extract with 5% withanolides to help support focus, vitality, and everyday stress resilience.
STRESS RESPONSE & FOCUS SUPPLEMENT. Ashwagandha is known for its adaptogenic properties, which may promote mind and body balance during times of occasional stress.
STANDARDIZED FOR POTENCY. Each batch is standardized to 5% withanolides, ensuring consistent strength and quality in every capsule to support optimal daily well-being.
VEGAN, CLEAN FORMULA. Free from preservatives, artificial coloring, and animal ingredients. Made with rapidly absorbed plant-based capsules for a clean-conscience wellness routine.
TRUSTED SINCE 1948. Granions brings 75+ years of expertise with cGMP manufacturing, exceeding quality standards to deliver science-backed supplements. Your Wellness is in Our Nature.

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Our Best Overall Choice

Best Choice

9.7

Nutricost

Nutricost KSM-66 Ashwagandha Root Extract 600mg, 60 Veggie Caps - 5% Withanolides - with BioPerine - Full-Spectrum Root Extract

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Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

600mg of KSM-66 Ashwagandha Root Extract Per Serving (60 Servings)
60 Veggie Caps Per Bottle
5% Withanolides (30mg Per Cap)
BioPerine For Improved Absorption
Non-GMO, Gluten Free, Made in a NSF Certified, GMP Compliant, FDA Registered Facility

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