Nature's Way Standardized Korean Ginseng is a scientifically and technically advanced herbal extract standardized to 7 % ginsenosides with a guaranteed Rg. to Rb. Ratio of 1:2 and supported by the whole herb. Nature's Way Korean White Ginseng extract enhances physical and mental endurance for people leading active and demanding lifestyles. Korean Ginseng is particularly useful when you are suffering from fatigue or from reduced work capacity and ability to concentrate. Korean Ginseng is standardized to 7 ginsenosides. Enhances physical endurance and mental vitality. Suggested Use As a dietary supplement take 1 capsule twice daily preferably with food.