Myrcene, a terpine present in hops, lemon grass, basil, and mangoes as well as its namesake Myrcia Sphaerocarpa and Cannabis. Myrcia Sphaerocarpa is a shrub found in South America that is traditionally used to treat Diabetes, Diarrhea, Dysentery and Hypertension. The terpene can also have culinary and fragrance uses, thanks to it’s “earthy, fruity and clove-like” scent.
One mechanism that would be of particular note in cannabis is its claimed effect on the permeability of cell membranes, particularly the blood–brain barrier (BBB). This increases the transport of cannabinoids into the brain; however, perusal of claimed references in the popular literature shows a lack of hard data regarding brain transport.