Features
- 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 around memory & cognition, stress support, endurance, & thyroid support.
- 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 a 27.9% reduction in cortisol levels after participants took KSM-66 Ashwagandha, which led to significantly reduced levels of stress. Each Ashwagandha serving comes with 1000 mg of vegan organic KSM-66 ashwagandha, which is clinically supported to promote resistance to stress.
- Thyroid Support: Support your metabolism & ensure your thyroid stays at an optimal level with Ashwagandha. A clinical study found that KSM-66 ashwagandha may be beneficial for normalizing thyroid indices in patients.
- Sports Nutrition, Energy & Endurance: KSM-66 is the most effective form of ashwagandha for athletes who train and compete at peak levels. It enhances energy, endurance, and assists muscle recovery.
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Product description
* These statements have not been evaluated or approved by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.

KSM-66 Ashwagandha
Ashwagandha is a powerful Ayurvedic herb used for thousands of years for its restorative and rejuvenating benefits. KSM-66 is the most highly concentrated and bioavailable ashwagandha extract and is known to support stress and anxiety relief, improve energy, and enhance mental acuity*.

Support for a healthy body and mind
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Stress ReliefKSM-66 Ashwagandha has the highest percentage of withanolides of all branded root-only extracts on the market. KSM-66 Ashwagandha has been clinically proven to promote stress and anxiety relief.* |
Energy & StaminaSeveral studies have shown that KSM-66 improves athletic performance, boosting energy and supporting muscle recovery by increasing cardiorespiratory capacity and providing protection from free radical damage* |
Mental ClaritySeveral studies indicate that 600 mg per day of KSM-66 ashwagandha improves attention, processing speed, and information recall reducing the effects of stress on the brain and supporting brain cell communication*. |

Why KSM-66?
KSM-66 Ashwagandha has the highest percentage of withanolides of all branded root-only extracts on the market. KSM-66 Ashwagandha has been clinically proven to reduce symptoms of stress and anxiety.*
The Physician’s Choice difference
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Sustainably SourcedAt Physician’s Choice, we are invested in clean manufacturing with the highest quality ingredients. We strive to ensure that our products are clean, contaminant-free, and have the least environmental impact possible |
Scientifically BackedThe ingredients of our products are backed by clinical trials and years of scientific studies, resulting in better absorption, potency and bio-availability |
Physician ApprovedAll of our supplements contain clinically proven ingredients and are carefully formulated to achieve the optimal dosage, minimize allergens, and ensure quality and safety |
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KSM-66 | Ashwagandha | |
Organic Ashwagandha | ✓ | ✓ |
Organic Black Pepper Extract | ✓ | ✓ |
30 Day Supply | ✓ | ✓ |
Serving Size | 2 Capsules | 3 Capsules |
Difference | With KSM-66 – A Premium Standardized Form of Ashwagandha | With High-Quality Generic Organic Ashwagandha |