Borneol: A Plant-Sourced Terpene with a Variety of Promising Pharmacological Effects Background: Borneol, a bicyclic monoterpene belonging to the class of camphene, is sourced from Blumea balsamifera, Cinnamonum camphora (L.) Presl, Dryobalanops aromatica Gaertner, and the volatile oils extracted from various other plant sources. Chinese Traditional Medicine system documents almost 1000 years...