The Cortisol Connection
Chronic stress isn't just unpleasant — it measurably raises serum cortisol, which in turn disrupts sleep architecture, increases visceral fat storage, suppresses immune function, and impairs cognitive performance. KSM-66 Ashwagandha is the most clinically studied ashwagandha extract on the market, with 24+ human trials behind it.
What the Clinical Trials Show
A landmark 2012 RCT (Chandrasekhar et al., 64 subjects, 60 days, 600 mg/day KSM-66) found: serum cortisol reduced by 27.9%, Perceived Stress Scale scores dropped 44%, and all 4 anxiety/insomnia/depression subscales showed statistically significant improvement (p < 0.0001).
Subsequent studies added findings on: VO2 max improvement in athletes (+13%), muscle strength recovery, and testosterone restoration in stressed males — making it one of the few adaptogens with dual stress-and-performance evidence.
Sensoril vs KSM-66 vs Root Powder
KSM-66 uses a whole-root, water-only extraction that preserves the full-spectrum withanolide profile — unlike Sensoril (which uses leaf+root and can be more sedating) or generic root powder (which has inconsistent withanolide content). KSM-66 is standardized to >5% withanolides, the highest available.
Our Formula
Adaptogen Stress Shield delivers 600 mg KSM-66 per capsule — the exact clinically-validated dose. Take 1 capsule in the morning and 1 in the evening for sustained cortisol modulation throughout the day. Effects are cumulative; the 60-day mark is where most users report the biggest shift.