Litsea Cubeba vs Melissa Oil: Same Citral, Different Plants
Litsea cubeba oil is not melissa oil, and it should not be bought or sold as a stand-in for it. Both can be dominated by the same two molecules, neral and geranial, which together are called citral. That overlap is the reason melissa (lemon balm) oil is named as a substitution target, and the reason a lemony smell or a high citral number proves nothing about which plant an oil came from.
Litsea Cubeba Essential Oil
Our own Litsea Cubeba Essential Oil, in sizes from 0.5 oz to bulk.
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Shop Now →The overlap, with numbers
Start with litsea. A 2012 study in Molecules distilled fruit from eight sites in six Chinese provinces (collected September 2011, hydrodistilled, analysed by GC-MS) and found neral plus geranial between 78.7% and 87.4% of the oil. Geranial ran 44.4% to 50.0%, neral 34.2% to 37.4%, limonene 0.7% to 5.3%, and citronellal up to 6.2% (Si et al., 2012). Eight samples from one season is a small survey, and the authors themselves report that composition varied by site, even within a province.
Now melissa. A 2022 review in the International Journal of Molecular Sciences collected composition studies and gave aggregate ranges across them: geranial 6.22% to 51.21%, neral 4.28% to 35.02%, citronellal 0.4% to 20.3%, with caryophyllene oxide up to 43.55% (Petrisor et al., 2022). Those are ranges pooled from different studies, not one measurement. The individual studies it lists are more useful for arithmetic:
| Melissa study (as listed by Petrisor, 2022) | Geranial % | Neral % | Citral (sum) % |
|---|---|---|---|
| Poland, year 1 | 45.2 | 32.8 | 78.0 |
| Poland, year 2 | 45.1 | 33.8 | 78.9 |
| Algeria | 44.20 | 30.20 | 74.4 |
| Germany (Souihi et al.) | 39.31 | 27.71 | 67.0 |
| France (Souihi et al.) | 7.12 | 4.29 | 11.4 |
| Tunisia, Greece | citral absent or not reported as present (germacrene D predominant in the Tunisian oil) | ||
The sums are ours, from the review's per-study figures. Read them against the litsea survey: the two Polish melissa oils (78.0% and 78.9%) sit on the bottom edge of the litsea range (78.7% to 87.4%). The lowest litsea sample in that survey and a Polish melissa oil are, by citral alone, the same number. Meanwhile a French melissa population gave 11.4% and a Tunisian one gave none. The same review reports that a 28-accession study found two chemotypes, a citral type and a germacrene D type, and that oil content in that study ran from 0.01% to 0.72%.
Two consequences follow. First, a melissa oil is sometimes below litsea in citral, so "higher citral means more genuine" is wrong in both directions. Second, there is no single citral percentage that identifies melissa.
What the adulteration sources say, and do not say
The Aromatic Plant Research Center, a laboratory, published an unsigned post on 5 April 2021 stating that melissa oil varies by location and harvest time, which makes adulteration easy to hide. It lists oils that carry the same compounds as possible additions (citral from lemongrass, litsea cubeba or lemon myrtle, or synthetic) and says short GC-MS runs often miss heavier components (APRC, 2021). It is a laboratory's blog post, not a peer-reviewed survey: it gives no count of how many commercial oils were checked, so treat it as a description of the mechanism, not a measured rate.
The peer-reviewed side is a 2006 paper in Analytical and Bioanalytical Chemistry. Its authors studied lemon, two lemongrass species, Ceylon and Java citronella, Litsea cubeba, Lippia citriodora, lemon myrtle, lemon gum and especially lemon balm, using enantioselective GC for citronellal and isotope-ratio mass spectrometry for citral and citronellal. They report that these data may help determine botanical or geographic origin and detect adulteration, and that a principal-components analysis could tell lemongrass from litsea oil (Nhu-Trang et al., 2006). I could read only the abstract; the full text is paywalled, so I cannot report sample numbers or a detection rate. What the abstract does establish is that telling these oils apart took specialist chiral and isotope methods, not a smell test and not a density reading.
Why a litsea "melissa" is a different product
The shop copy for our oil describes it as intense, sweet and lemon-bright, with a soft fruity, floral roundness, and it is sold as a top note. Melissa, going by the review above, can carry a large non-citral fraction (caryophyllene oxide, beta-caryophyllene, geranyl acetate in some samples). Litsea in the Chinese survey is almost entirely oxygenated monoterpenes (89.5% to 96.4%). Reasoning from those two composition profiles, a swap changes the non-citral half of the smell, not only the lemon half. It also changes the botanical name that belongs on the label.
The yield arithmetic behind the cost gap
We state no prices, but yield explains why melissa tempts adulteration. The Petrisor review lists melissa oil yields of 0.3% (Poland), 0.34% (Algeria) and, in one study, 0.08% to 0.20%. One hydrodistillation of litsea fruit from Arunachal Pradesh gave 2.485% (Boruah et al., 2019). At 0.3%, one kilogram of oil needs about 333 kg of herb (1 / 0.003). At 2.485% it needs about 40 kg of fruit (1 / 0.02485). That is roughly eight times the plant material per kilogram, from different plants, parts and labs, so treat it as an order of magnitude, not a market fact. Cheap "melissa" is exactly what that arithmetic makes you doubt.
What we recommend
We sell one oil, litsea cubeba, and no melissa. If you want melissa, buy it from a supplier who will put GC-MS data in writing, naming the plant part and the lot, before you pay. If you are offered "melissa" at a price that looks too good, ask for that report and for the chiral data on citronellal; the 2006 abstract shows why. If you want a lemony citral oil and melissa is out of reach, litsea is a different oil to be named as litsea, and the swap is worked through in our substitutes guide.
Our published COA covers appearance, smell, relative density 0.883, refractive index 1.483 and optical rotation +10.04 for the batch on the sheet, and it shows no constituent percentages. Those three bulk constants cannot resolve a citral-rich blend into its sources; for that you need a chromatogram. The details of reading one are in our GC-MS guide, and the full spread across citral oils is laid out in the citral comparison. For the lemongrass pairing see the lemongrass comparison, and for the molecule itself the citral article. Our own safety copy calls citral a recognised skin sensitiser, so any citral oil belongs well down in a carrier and behind a patch test.
If you came here wanting melissa, buy melissa with paperwork. If you came for the lemon-bright top note in a candle, soap or perfume, litsea is the oil we sell, at the dilutions in our skin copy of 0.5% to 2%.
Litsea Cubeba Essential Oil
Litsea Cubeba Essential Oil from our own shop, in sizes from 0.5 oz to bulk.
From $12.99
Shop Now →Sources & Further Reading
- Si L. et al., 2012. Chemical Composition of Essential Oils of Litsea cubeba Harvested from Its Distribution Areas in China. Molecules 17(6):7057. pmc.ncbi.nlm.nih.gov/PMC6268156
- Petrisor G. et al., 2022. Melissa officinalis: Composition, Pharmacological Effects and Derived Release Systems, a Review. Int J Mol Sci 23(7):3591. pmc.ncbi.nlm.nih.gov/PMC8998931
- Aromatic Plant Research Center, 2021. Melissa Adulteration (blog post, unsigned). aromaticplant.org/BlogDetails/Melissa-Adulteration
- Nhu-Trang T.T., Casabianca H., Grenier-Loustalot M.F., 2006. Authenticity control of essential oils containing citronellal and citral by chiral and stable-isotope gas-chromatographic analysis. Anal Bioanal Chem 386:2141 (abstract read). link.springer.com/s00216-006-0842-2
- Boruah N. et al., 2019. Chemical analysis of Litsea cubeba essential oil harvested from Arunachal Pradesh, India, and estimation of mosquito repellent activity. Asian J Pharm Clin Res 12(5). journals.innovareacademics.in/32672