What Is Opoponax (Sweet Myrrh)? | Première Peau

Sweet, balsamic, warmly resinous — immediately gentler than myrrh, without its bitter medicinal edge. Where myrrh is austere and churchy, opoponax is honeyed, almost confectionery: closer to benzoin or Tolu balsam in sweetness, but drier, with a dusty old-wood quality underneath.

On a blotter, the opening is brighter than expected — a faint terpenic lift from α-santalene and bergamotene, almost citrus-adjacent. Within minutes this settles into the material's true character: warm, honeyed, softly animalic balsam. The animalic facet comes from the furanosesquiterpene fraction and reads less 'animal' than 'old leather warmed by sun.' A liquorice-toffee effect and mushroom note appear in the heart. The dry-down is long, intimate, incense-like — amber-resinous on fabric for days.

Opoponax — also called sweet myrrh, bisabol, or scented myrrh — is an oleo-gum-resin from Commiphora erythraea var. glabrescens Engl. (Burseraceae), sometimes cited under its synonym C. guidottii Chiov. It bleeds from bark incisions on small, thorny trees native to the arid lowlands of Somalia, Ethiopia, Kenya, and Eritrea. The crude resin hardens into dark, tear-shaped lumps containing 50–80% water-soluble gum, 15–40% alcohol-soluble resin, and 5–9% volatile oil.

GC-MS analysis (Marcotullio et al., 2009; Muturi et al., 2020) shows the essential oil is dominated by sesquiterpenes, with furanosesquiterpenes comprising 50.3% of the oil. Bisabolene is the single largest component at approximately 33.9%, followed by curzerene (32.6% in the lightest fraction) and α-santalene (up to 30.1% in heavier fractions). The furanosesquiterpene fraction is responsible for the warm, slightly animalic depth; simpler sesquiterpenes contribute woody-balsamic facets.

Three commercial forms exist. Steam distillation of the crude resin yields approximately 2–3% essential oil (roughly 35–50 kg of resin per 1 kg of oil). Supercritical CO₂ extraction produces a similar yield but retains a broader molecular profile. The resinoid — produced by solvent extraction with petroleum ether or hydrocarbons — captures heavier non-volatile molecules stripped during distillation; it is richer, more balsamic, with caramellic and liquorice facets the distilled oil lacks, and is the preferred form for fine fragrance work.

Opoponax should not be confused with the botanical genus Opopanax (Apiaceae), particularly O. chironium — an entirely different Mediterranean umbellifer whose gum-resin was the original 'opopanax' of Dioscorides. The modern perfumery material inherited the name through centuries of trade misidentification, likely because the dried gum tears of both plants look nearly identical. Appendino et al. (2004) confirmed that the true Opopanax chironium is a coumarin-rich plant with no olfactory resemblance to the Commiphora resin used in perfumery.