Pharmacy name: resin from the bark of a tree – Mastix.
Botanical description. Evergreen tree up to 5 m in height, with resinous bark, leathery leaves and small red flowers collected in a panicle or brush. It grows in the Mediterranean, in the Canary Islands.
Active ingredients: alcohol-soluble and alcohol-insoluble resinous substances, essential oil, bitterness.
Application. Formerly processed to make plasters, mouth rinses, and tooth fillings. Also used for gluing bandages.