KSM-66 is the world’s most popular ashwagandha, and also the most researched, with the largest number of published clinical trials. Standardised to 5% withanolides, it contains a high concentration root-only extract, and is very safe compared to leaf products. 

KSM-66 only manufactures ashwagandha and oversees the entire production process - from having its own organic-certified farms and manufacturing facilities, to testing and research labs. The entire production process is free of synthetic solvents and alcohol.