Boswellia serrata is Indian frankincense or Salai. It is found in Rajasthan and Madhya Pradesh in India. Its aroma is generally considered to be far inferior compared to Boswellia sacra or Boswellia frereana.
Extracts of Boswellia serrata have been clinically studied for osteoarthritis and joint function, particularly for osteoarthritis of the knee. A Boswellia extract marketed under the name Wokvel has undergone human efficacy, comparative, pharmacokinetic studies.