Imperial Elixir Authentic Korean Red Ginseng utilizes the best and most expensive ginseng roots in Korea, which are carefully cultivated, culled and then cured. For this reason it is called the "King of Ginsengs," and considered to be a yang stimulating variety, reputedly assisting energy and stamina. Studies show that it contains several active ginsenosides not found in the uncured or white ginseng. Imperial Elixir uses only authentic, high quality Korean Red Ginseng imported from Korea and then assayed in the U.S. to ensure high potency.