Mecca balsam

Opopanax, also known as opobalsam, refers to a number of gum resins (natural substances that are a mixture of water-soluble gums and alcohol-soluble resins) traditionally considered to have medicinal properties. Pliny (Historia Naturalis) and Dioscorides (De Materia Medica) described various kinds with uncertain identifications, which have been distinguished as:

In recent times, the main source of commercial opopanax is from species of Commiphora, particularly C. erythraea and C. kataf. (Some sources suggest the entire production is from C. erythraea var. glabrescens, a tree growing in Somalia.) Myrrh is also obtained from Commiphora species.

The name opopanax derives from Anglo-Norman opopanac, from Latin opopanax, from Hellenistic Greek ὀποπάναξ, from Ancient Greek ὀπός "vegetable juice" + πάναξ "panacea" (all healing). Panacea (Gk. πανάκεια) denotes a kind of savory, named for Panakeia, a daughter of Aesculapius.

The OED gives opopanax as the principal spelling, but lists opoponax as a variant spelling recorded from the 19th century.

A resinoid is prepared from the resin by solvent extraction. Steam distillation of the resin gives the essential oil, which has a warm, sweet, balsamic odor. Opopanax oil and resinoid are used in perfumes with oriental characteristics. An IFRA recommendation exists.

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