Zahler Ashwagandha contains a clinically validated dose of 600mg to support mental energy and relaxation. KSM-66 is a full-spectrum organic extract obtained from the root of the Ashwagandha plant. An eight-week placebo-controlled clinical trial showed that 600mg of KSM-66 Ashwagandha extract improved mental energy and promoted relaxation. Ashwagandha capsules are Kosher, NON-GMO, Gluten Free, Dairy Free, Soy Free and Vegetarian Friendly. Rooted in nature's organic bounty and manufactured and bottled in a state-of-the-art GMP-certified facility in the USA. Kosher certified. Non-GMO. Gluten free. Dairy free. Soy free. It's either the best -- or not Zahler.