From the Manufacturer:
"Dong quai is one of the most relied upon herbs worldwide to support a healthy female cycle. Used to build blood and promote pelvic circulation, it has remained one of the premier tonifiers of Chinese herbalism for more than 1000 years. Planetary Formulas FULL SPECTRUM DONG QUAI is prepared from the entire root - not just parts of the root - for balanced activity.
Dong quai, derived from the root of the Chinese perennial Angelica sinensis, ranks just below ginseng as the most popular herb in China and Japan. It has often been referred to as the ""female ginseng,"" popular among women for centuries as a ""blood tonic"" and used to promote a healthy menstrual cycle and to ease normal menstrual discomfort."