Boswellia serrata contains chemicals that might decrease swelling and increase the body’s immune response. Extracts of the Boswellia serrata sap, bark, and other plant parts have been taken by mouth for therapeutic purposes.
People use Boswellia serrata for osteoarthritis. It is also used for many other purposes, including asthma, diabetes, and stroke, but there is no good scientific evidence to support these other uses. There is also no good evidence to support using Boswellia serrata for COVID-19.
The sap from Boswellia serrata is sometimes used to make Frankincense. Frankincense is typically applied to the skin or inhaled as aromatherapy. For information on those uses, see Frankincense.