Dong Quai root has a long history in traditional Chinese medicine as a menstrual comfort aid and female tonic. People take it as a capsule or liquid extract, often timed to the menstrual cycle.
It may support menstrual comfort and circulatory health. Some take it during the luteal phase of the menstrual cycle.
Dong Quai can make skin more sensitive to sunlight, particularly with high doses or long-term use. It may interact with blood thinners like warfarin or aspirin. Do not use during pregnancy or breastfeeding. Talk to a doctor before taking it if you have a hormone-sensitive condition or are on other medications.