Glycyrrhiza glabra alias: Guo Lao, sweet grass, Ural licorice, sweet root seeds. Leguminosae, licorice genus perennial herb, root and rhizome thick, is a kind of tonic herbal medicine. A good medicine for the human body, the medicinal part is the root and rhizome, herb properties root is cylindrical, 25 to 100 centimeters long, 0.6 to 3.5 centimeters in diameter. The outer skin is loose and tight, and the surface is reddish brown or grayish brown. The rhizome is cylindrical, with bud scars on the surface and a pith in the middle of the cross-section.

Glycyrrhiza glabra has a slight odor, sweet and special taste. Functions include clearing away heat and removing toxins, expelling phlegm and relieving cough, and the stomach and abdomen. It is used for heart qi deficiency, palpitation and palpitation with dizziness, pulse knot generation, and spleen and stomach qi deficiency, tiredness and weakness. Used for stomachache, abdominal pain and gastrocnemius muscle contracture pain, etc., often used with peony, can significantly enhance the efficacy of the treatment of contracture pain, such as peony licorice soup. Licorice also has anti-inflammatory and anti-allergic effects, and can protect the inflamed mucous membranes of the throat and trachea. Licorice extract and glycyrrhizic acid have a detoxifying effect on certain poisons similar to that of glucuronic acid. Licorice is often used to treat the symptoms that accompany menopause. Because licorice contains glycyrrhizin, a hormone-like compound, it helps to balance hormone levels in a woman's body.