The Gold Standard of Ashwagandha
HerbaLife Ashwagandha KSM-66® is derived exclusively from ashwagandha roots — never the leaves — using a
patented aqueous extraction process that preserves the full spectrum of bioactive withanolides, alkaloids,
and saponins.
Unlike most ashwagandha products that use a mixture of root and leaf extracts or cheaper alcohol extraction
methods, KSM-66® is made without chemical solvents and maintains the natural balance of all active compounds
present in the whole root.
Clinical Evidence
- 24 published clinical trials — the most of any ashwagandha extract
- Clinically shown to reduce cortisol by up to 27.9% (Chandrasekhar et al., 2012)
- Proven to improve VO₂ max and physical endurance (Choudhary et al., 2015)
- Demonstrated cognitive benefits: memory, attention, processing speed
- Shown to support healthy testosterone levels in men (Ambiye et al., 2013)
- Well-tolerated with an excellent safety profile across all major studies
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Why KSM-66® vs Generic Ashwagandha?
Generic ashwagandha extracts are often leaf-root mixtures standardised to
withanolides with no clinical evidence. KSM-66® is root-only, clinically validated across 24 trials, and
the most bioavailable form available.