Testosil Review 2026: What the 434% Claim Really Means
Testosil’s “434% more testosterone” claim comes from an 8-week study of 600 mg/day of KSM-66 ashwagandha combined with resistance training—not a clinical trial of Testosil itself. In that study, testosterone increased by 96.2 ng/dL in the ashwagandha group versus 18.0 ng/dL with placebo and exercise. That works out to a roughly 434% greater increase between…