This episode of Sperb’s Herbs looks at a very special herb: ai ye or mugwort. On the surface, this herb does not appear to be super useful or used in a lot of formulas. However, it is beyond a doubt the most important herb for acupuncture. This is because it is the primary herb used in moxibustion. We will explore the properties of ai ye and the importance and use of moxa in this super interesting episode.