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Opopanax

Opopanax, Mộc dược ngọt

Commiphora guidottii

Sweet myrrh, Bisabol myrrh

Burseraceae · Nhựa cây · Resin · Steam-distilled

Opopanax essential oil (Commiphora guidottii) — botanical illustration
Commiphora guidottii

Safety

Skin sensitization low · Phototoxic? possibly

Low skin sensitization risk.

Some reports of phototoxicity at high concentrations, though data is inconclusive. Dermal limit recommended for sun-exposed applications.

Not recommended in pregnancy, opopanax is in the same family as myrrh, with potentially similar effects.


Usage guidelines

Maximum dermal level
0.6 percent
Contraindications
Pregnancy, breastfeeding
Storage
Dark, sealed, refrigerated

Chemistry

Volatile constituents
α-Bisabolene10.0 – 25.0 %
β-Bisabolene8.0 – 15.0 %
γ-Bisabolene5.0 – 12.0 %
α-Santalene5.0 – 10.0 %
β-Caryophyllene3.0 – 8.0 %

Botanical source

Commiphora guidottii is a tree from the semi-arid regions of East Africa, particularly Somalia and Ethiopia.

When the trunk bark is damaged, yellow-orange sap flows out. It hardens into resin called opopanax or sweet myrrh.

The essential oil is distilled from the resin. Small-scale production.

Family Burseraceae, same family as myrrh (Commiphora myrrha) and frankincense (Boswellia).


Notes

Aroma close to myrrh but sweeter and more balsamic, hence the name 'sweet myrrh'.

In perfumery, opopanax is an important oriental base note. In incense, opopanax and myrrh are often used together.