Description
Not all ashwagandha is equal. KSM-66 is a full-spectrum root-only extract standardised to a high withanolide content, and it carries more published human clinical trials behind it than any other ashwagandha extract available. When research reports benefits for cortisol, strength, testosterone or cognitive function, KSM-66 is frequently the extract that was used.
At 500mg per capsule, Trec Nutrition deliver a dose in line with the levels used in that clinical literature — which matters, because underdosed ashwagandha products are common and simply will not reproduce the studied effects.
Why KSM-66 specifically:
- The most clinically studied ashwagandha extract available
- Root-only, full-spectrum — no leaf material
- Supports cortisol regulation and stress resilience
- Studied for effects on strength, recovery and testosterone in training populations
- Cognitive function, focus and sleep quality support
- 500mg per capsule, 60 caps — clinical-level dosing
Take 1 capsule daily with food. Consistent use over 8 weeks reflects the typical clinical trial duration.




