Independent analysis of published clinical evidence for KSM-66® Ashwagandha at 600mg. What the RCTs actually show for cortisol, testosterone and stress relief.
Yes — but only KSM-66® Ashwagandha at 600mg. Published double-blind RCTs confirm 27.9% cortisol reduction and statistically significant testosterone support at this specific dose and form. Generic ashwagandha at lower doses does not carry the same evidence.
KSM-66® Ashwagandha at 600mg daily is supported by multiple published double-blind, placebo-controlled RCTs. The landmark study (Chandrasekhar et al., 2012) demonstrated 27.9% cortisol reduction vs placebo in 60 days. A second RCT (Wankhede et al., 2015) confirmed significantly greater testosterone gains and muscle strength in resistance-trained men.
The clinical evidence is specific to KSM-66® at 600mg/day. Many supplements include 100–200mg of generic extract — a fraction of the studied dose with no equivalent clinical backing. Always verify the dose on the supplement facts panel before purchasing.
Testosil® contains KSM-66® at the full 600mg clinical dose alongside 11 additional evidence-based ingredients. WellnessChecked score: 9.5/10. Lifetime money-back guarantee.