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Ashwagandha Ksm66
Root-only ashwagandha extract standardized to ~5% withanolides, licensed by Ixoreal Biomed (India), and the substrate of most of the high-quality T-boost and athletic-performance trials in the ashw…
Aliases (4)
Overview
What is Ashwagandha Ksm66?
KSM-66 is a full-spectrum, root-only ashwagandha extract standardized to 5% withanolides, developed by Ixoreal Biomed over 14 years. It is the most clinically-studied ashwagandha extract, with the largest body of human RCTs across stress, sleep, testosterone, and athletic performance.
Key Benefits
Strongest evidence for cortisol reduction and stress relief, reproducible boost in testosterone and DHEA-S in men, improved muscle strength and recovery in resistance-training trials, and modest sleep improvement.
Mechanism of Action
Same multi-target mechanism as base ashwagandha — HPA axis attenuation, GABAergic anxiolysis, antioxidant and anti-inflammatory withanolide effects. Root-only, full-spectrum extract preserves the natural withanolide ratio.
Pharmacokinetics
Peptide Interactions
(the canonical stack): AM-rhodiola + PM-ashwagandha is a classic adaptogen pairing
(the canonical stack): HPA-axis support
(the canonical stack): Additive calm without sedation
(the canonical stack): Independent neuroprotection
What to Expect
- Week 1Tolerability and dose-response.
- Week 2-4Early effect window.
- Week 4-8Peak benefit assessment.
- Week 8+Cycle decision point.
Side Effects & Safety
Same as parent ashwagandha entry. KSM-66-specific notes:
- Lower withaferin A than Sensoril → potentially lower autoimmune-flare risk (theoretical)
- GI upset somewhat less than Sensoril at equivalent withanolide load (anecdotal)
- Hepatotoxicity case reports exist for ashwagandha generally; KSM-66 has fewer reports than unstandardized products but background rate non-zero
References
Wankhede et al. 2015 — KSM-66 + resistance training in young men (J Int Soc Sports Nutr)
Lopresti et al. 2019 — KSM-66 in overweight aging men, T and cortisol effects (Medicine)
Chandrasekhar et al. 2012 — KSM-66 chronic stress trial (Indian J Psychol Med)
Ambiye et al. 2013 — KSM-66 in oligospermic men (Evid Based Complement Alternat Med)
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