Angelica Sinensis, Radix (Chinese: dang gui 当归片 or sometimes spelled tang kuei) tonifies, invigorates, and harmonizes the blood. Traditionally an important herb for women and used for irregular and delayed menstrual cycles, menopause, PMS, menstrual cramps, has a mild sedative effect, and is good for pain. It also improves circulation by increasing blood flow. Use by itself or combine with Ginseng, antler, Ligustici Wallichii, Rehmanniae, Paeoniae, Chrysanthemum, or Lycii. Dang gui comes two ways, palm-sliced or heads. The palm-sliced is considered a premium grade of Dang gui; however, the heads are more commonly used and are of excellent quality. Use 3-15 grams per four cups water.