Moxa is a dried plant (Artimisia argyi) used to warm and stimulate acupuncture points, a process called moxibustion. This therapy has been in use for over 2000 years and is a commonly used adjunctive technique during acupuncture sessions. Moxa works to build, nourish and warm the body, improving the circulation of qi and blood. It is mainly used in conditions associated with 'cold' or 'yang deficiency' in Chinese medicine such as pain (often used during your period to ease pain and promote blood flow), scar tissue healing, fatigue, anxiety, some types of infertility, skin conditions and digestive disorders. It is often given to use at home between sessions.

Moxibustion is also well known in midwifery for its ability to stimulate a breech baby to turn in 69-85% of cases according to various studies.