Eleuthero (Siberian): This herb's use dates back 2,000 years, according to Chinese medicine records. Referred to as ci wu jia in Chinese medicine, it has traditionally been used to support the immune system as well as promote energy levels. Herbs have long been a principle form of treatment for a large portion of the world's population, to help benefit specific systems and functions of the body. The Vitamin Shoppe has a broad array of high quality botanical products to meet your needs and preferences.