Capsules · 60 capsules · 30 servings · $0.73/serving
Dr. Mercola's Organic Ashwagandha delivers KSM-66® ashwagandha root extract, a concentrated full-spectrum form standardized to a high percentage of withanolides. It supports stress resilience, may help maintain healthy cortisol balance, and is formulated for adults seeking adaptogenic support for energy and mental clarity.
Why It's Worth Considering: The organic certification and use of root-only extract, rather than leaf or whole-plant blends, aligns with the most traditionally validated and studied form of ashwagandha.
| Feature | KSM-66 (root) | Sensoril (root+leaf) | Generic Extract |
|---|---|---|---|
| Withanolide % | 5% standardized | 10% standardized | 1.5-2.5% (varies) |
| Best For | Performance, testosterone, cortisol | Anxiety, sleep, relaxation | Budget option |
| Research | 22+ clinical trials | 11+ clinical trials | Limited |
| Quality Control | Patented, GMP certified | Patented, standardized | Varies widely |
Most people notice reduced stress reactivity within 1-2 weeks. Sleep improvements by week 2-3. Full cortisol-lowering and performance benefits take 8-12 weeks of consistent daily use. It's an adaptogen — benefits compound over time, not a one-dose effect.
KSM-66 uses only the root and is standardized to 5% withanolides. It's better studied for performance, testosterone, and general stress. Sensoril uses root and leaf, standardized to 10% withanolides, and is more potent for anxiety and sleep. Both are clinically validated — KSM-66 for daytime, Sensoril for evening use.
Yes, in men with suboptimal levels. Clinical trials show KSM-66 at 600mg/day increased testosterone by 15-17% and improved sperm quality in infertile men. In men with already-normal testosterone, the effect is modest. It works primarily by reducing cortisol (which suppresses testosterone production).
There's no clinical evidence requiring cycling, but many practitioners recommend 8-12 weeks on, 2-4 weeks off to maintain sensitivity. If you notice the effects plateauing, a 2-week break can restore responsiveness. Some people take it continuously for years without issue.
Yes — they work through different mechanisms. Ashwagandha calms the stress response while caffeine increases alertness. Many people find the combination produces focused energy without jitteriness. Take ashwagandha with breakfast alongside your coffee.
Yes — ashwagandha is safe and beneficial for women. It reduces cortisol, improves thyroid function, supports fertility, and enhances sleep. It may mildly increase testosterone, which in women supports libido and energy without masculinizing effects. Avoid during pregnancy and breastfeeding.
No significant interactions identified. Always consult your healthcare provider.
† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
