Boswellia (a.k.a. Frankincense) has been used to treat arthritic pain and inflammation for thousands of years.  Modern clinical studies have found that this effect is primarily from the inhibition of 5-lipoxygenase, which is different from typical anti-inflammatory drugs like Ibuprofen or Aspirin.  The effectiveness of Boswellia for osteoarthritis has been demonstrated in clinical studies.

Boswellia in the treatment of Osteoarthritis:

Boswellia in Chronic Inflammatory Diseases:

Boswellia, An Overview: