Boswellic Acid is extracted from Frankinsense and works very effectively as an anti-inflammatory yet in a different way than most. Most anti-inflammatories treat the inflammation directly. Boswellia actually inhibits the production of Lipoxygenace which produces leukotrienes which play a major role in inflammatory diseases and a host of other illnesses. Thus, it seems to stop the inflammatory response and thereby prevent further tissue breakdown. It also may improve blood supply to the joints.
* This one is a must have in my own herbal medicine cabinet as a fast acting anti-inflammatory for acute injuries.t