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Myrtle (lemon)

Sim chanh

Backhousia citriodora

Lemon myrtle

Myrtaceae · Lá · Leaves · Steam-distilled

Myrtle (lemon) essential oil (Backhousia citriodora) — botanical illustration
Backhousia citriodora

Safety

Skin sensitization · Citral very high

Citral comprises 90-95 percent, the highest content among citral-rich oils. Pronounced skin sensitization risk.

Drug interactions through CYP2B6 inhibition.

Very low dermal concentration recommended.

Store properly.


Usage guidelines

Maximum dermal level
0.7 percent
Max daily oral in pregnancy
Avoid
Storage
Dark, sealed, refrigerated; add antioxidant

Chemistry

Volatile constituents
Geranial50.0 – 65.0 %
Neral30.0 – 40.0 %
(+)-Limonene1.0 – 3.0 %
Citronellal0.5 – 2.0 %

Botanical source

Backhousia citriodora is a medium-sized tree from Queensland, Australia. The leaves have the strongest citrus aroma of any known plant.

In Aboriginal culture, the leaves are traditionally used as tea and seasoning.

Production is mainly in Queensland. Lemon myrtle has become a commercial crop in many Australian regions.

Family Myrtaceae.


Notes

Cleaner, stronger citrus aroma than expressed lemon. In cosmetics and food, lemon myrtle is a popular natural citrus ingredient in Australia.

Similar to lemongrass and may chang in citral content, but with a more crystalline aromatic profile.