Licorice is an important Chinese traditional medicine which has been used for at least 2000 years in China. It is derived from the dried roots and rhizomes of Glycyrrhiza uralensis Fisch., Glycyrrhiza inflate Bat. and Glycyrrhiza glabra L. as described in Chinese Pharmacopoeia. Glycyrrhiza uralensis is widely distributed in northeastern China, northwestern China, northern China, Mongolia and Russia. Glycyrrhiza inflate is mainly distributed in Inner Licorice is an important Chinese traditional medicine which has been used for at least 2000 years in China. It is derived from the dried roots and rhizomes of Glycyrrhiza uralensis Fisch., Glycyrrhiza inflate Bat. And Glycyrrhiza glabra L. as described in Chinese Pharmacopoeia. Glycyrrhiza uralensis is widely distributed in northeastern China, northwestern China, northern China, Mongolia and Russia. Glycyrrhiza inflate is mainly distributed in Inner