Myrrh is a yellow, fragrant, sap-like resin that comes out of cuts in the bark of certain Commiphora trees, notably Commiphora myrrham. The majority (~60%) of myrrh is composed of water-soluble gum, which contains sugar, protein, and ash. Up to 40% of myrrh is alcohol-soluble resins, consisting of diterpenoids, triterpenoids, steroids, and lignans, and 7-17% is made up of volatile oils, which contain monoterpenes, sesquiterpenes, and small aromatic compounds. Myrrh has been used as an antiseptic and analgesic.