The Imperial Elixir line of products offers something to please even the most discerning of Ginseng connoisseurs. Stringent quality control and independent laboratory assays make sure you get the purest, most potent herbal formulations available. Ginseng is an ideal tonic herb because of its balancing, adaptogenic properties. The Siberian Ginsengs contain beneficial eleutherosides, highly effective for athletes and active people for boosting energy, stamina and endurance. According to the Chinese model of energy, the North American Ginsengs are more beneficial for yin defecient people, while the oriental varieties are best for those who are yang defecient.