An adaptogenic root extract that helps the body manage cortisol and stress hormones. Also supports sleep quality and physical endurance — particularly relevant under chronic stress or intense training.
Why this form
KSM-66® is a full-spectrum root extract standardised to ≥5% withanolides at a 20:1 ratio — the most clinically studied ashwagandha extract in existence, using only the root (never the leaf) to avoid withaferin A. The ® trademark reflects its status as the reference-standard form backed by the largest body of published clinical research.
Key benefits
Stress resilience
Ashwagandha's withanolides modulate the HPA axis to support the body's normal cortisol response to stress, contributing to normal psychological resilience under chronic and physical demands.
Physical performance
Shown to support muscular strength and endurance in clinical studies — particularly relevant under sustained training loads.
Sleep quality
Regular use is associated with improvements in sleep onset and morning restfulness, through its modulatory effect on the body's normal stress response.
Supports