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Borneol is a bicyclic organic compound and a type of monoterpenoid that occurs naturally in various essential oils.
-Recent studies have been exploring borneol’s ability to enhance drug delivery—especially across the blood-brain barrier.
-Borneol is particularly known for its ability to act as a penetration enhancer. This quality can improve the absorption of various drugs, potentially increasing their efficacy when used in combination with other therapeutic agents.
-Borneol is thought to temporarily open tight junctions between endothelial cells, enhancing drug penetration. It may also downregulate efflux transporters such as P-glycoprotein (P-gp), allowing higher intracellular concentrations of co-administered drugs.
Sources:
-Cinnamomum camphora (camphor tree), its essential oil contains borneol along with camphor.
-Dryobalanops aromatica,Often referred to as the camphor tree in Southeast Asia, its oleoresin is a well-known source of natural borneol.
-Blumea balsamifera