Ashwagandha Organic KSM-66 Tablets. OrganicKSM-66 Ashwagandha (5% withanolides) - 10:1 Extract -300mg - EquivalentAshwagandha Powder -3000mg. Organic KSM-66® Ashwagandha – High-Potency Adaptogen. Known for its stress-supporting properties, this clinically researched extract is ideal for supporting mood, energy, and overall wellbeing.