KSM-66 Ashwagandha
Also known as: Withania somnifera, Indian ginseng, winter cherry, ashwagandha root extract
Effective Dosage
300-600 mg daily (based on general clinical knowledge, not provided studies)
What the Science Says
KSM-66 is a patented, full-spectrum ashwagandha root extract standardized to at least 5% withanolides, the plant's active compounds. Ashwagandha is an adaptogenic herb used in Ayurvedic medicine for centuries to help the body manage stress. Clinical research on ashwagandha broadly suggests it may reduce perceived stress and cortisol levels, improve sleep quality, and modestly support testosterone and physical performance in healthy adults — though no specific studies were provided to confirm these effects for this exact product.
What It Doesn't Do
Won't eliminate anxiety or replace medical treatment for stress disorders. Not a proven testosterone booster in the way anabolic compounds are. Won't build muscle on its own without training. The 'KSM-66' branding doesn't automatically mean it outperforms other quality ashwagandha extracts. Effects are not immediate — most research suggests 4-8 weeks of consistent use.
Evidence-Based Benefits
May reduce stress and anxiety
Moderate EvidenceSource: auto-research
Absorption & Bioavailability
Moderate — fat-soluble withanolides absorb better when taken with food containing fat. The full-spectrum root extract format of KSM-66 is designed to preserve the natural ratio of active compounds, which may support absorption compared to isolated extracts.
Red Flags to Watch For
- No study abstracts were provided — all claims here rely on general knowledge, not verified research data
- KSM-66 is a proprietary branded ingredient; much of its supporting research is industry-funded, which can introduce bias
- Ashwagandha has been linked to rare cases of liver injury — consult a doctor if you have liver conditions
- May interact with thyroid medications, sedatives, or immunosuppressants — check with a healthcare provider
- Products labeled 'KSM-66' may vary in actual withanolide content depending on manufacturer quality control
Products Containing KSM-66 Ashwagandha
See how KSM-66 Ashwagandha is used in these analyzed products:
Research Sources
- General knowledge
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-04-06