There are many species of ginseng: American ginseng, Japanese ginseng, Siberian ginseng, tienchi ginseng, and more. Each variety containing different medicinal compounds and healing properties and used to treat different illness. Yet this site focuses on panax ginseng, also known as Asian, Chinese or Korean ginseng. Reasons being this particular variety appears to be the most powerful of the ginseng family. Second, Chinese, American and European research and usage has concentrated solely on panax ginseng - making its benefits the most thoroughly documented of the ginseng family.