Keihi (Cinnamon) Cinnamon For baths, mugwort steaming, Yosa, etc. I used to blend it freely for Yosa and mugwort steaming. Please research the effects of Keihi on the internet. It warms you up, no matter what. It has a very nice fragrance. I received it from an acquaintance about half a year ago. There is no label, but I think you will recognize it as Keihi by the scent. When using it in Yosa equipment, it's easy: just put it in a non-woven fabric bag, cotton, or a linen bag and then put it into the Yosa equipment.