Litsea Cubeba Essential Oil

Overview

Litsea cubeba essential oil — widely known as May Chang — is steam-distilled from the small, pepper-like fruits of Litsea cubeba, a tropical tree in the laurel family native to Southeast Asia and southern China. The scent is bright, intensely lemony-fresh with a slight floral sweetness underneath. It reads as “lemon” to most noses, but it is more complex and slightly softer than lemon essential oil itself.

The chemistry is dominated by citral, which exists as two isomers: geranial (citral a) and neral (citral b), together comprising 60-80% of the oil. Citral is the molecule responsible for the vivid lemon scent — and also for the primary safety concern. Citral is a known skin sensitizer. It is one of the 26 fragrance allergens required to be declared on EU cosmetics labels when present above threshold levels.

The practical consequence: leave-on products need to keep citral below approximately 0.7% of the finished product (a widely cited safety guideline). Since litsea cubeba is 60-80% citral, that translates to a maximum of roughly 0.9-1.2% litsea cubeba in leave-on products — and for the face, staying at 0.2-0.5% is strongly recommended. Litsea cubeba functions as a top note and fades relatively quickly, which is worth planning for in fragrance blends.

What it does in a formula

Litsea cubeba is first and foremost a fragrance ingredient — one of the most cost-effective ways to get a clean, bright lemon scent into a product. It is far cheaper than lemon verbena or melissa, both of which have similar citral-driven profiles but at much higher price points.

Beyond scent, citral has documented antibacterial and antifungal activity. This makes litsea cubeba a reasonable functional addition to products like deodorants, foot care, and antimicrobial cleansers. In aromatherapy, it is considered uplifting and energizing.

Litsea cubeba is especially popular in cold-process soap making. The scent holds up well through saponification — better than most citrus essential oils, which tend to fade — making it a go-to for lemon-scented soap without the price tag of lemongrass at high concentrations.

How to use

Add to the oil phase during cool-down. The citral is volatile and will diminish with prolonged heat exposure.

Usage rates by product type:

• Face serums and creams: 0.2-0.5% (citral sensitization risk — keep low)
• Body lotions and oils: 0.5-1%
• Deodorants: 0.5-1%
• Bath products: 0.5-1%
• Cold-process soap: 2-3% of total oils (scent holds well)
• Rinse-off products (shampoo, body wash): 0.5-1.5%
• Perfume blends (top note): 5-15% in the blend (monitor total citral in finished dilution)

Always calculate your total citral load in the finished product. If the oil is 70% citral and you use it at 1%, you are delivering 0.7% citral — right at the recommended limit for leave-on products.

Best for / Worst for

Best for: soap making (excellent scent retention in CP), lemon-scented product lines, deodorants, energizing bath and body products, antimicrobial formulas, affordable alternative to lemon verbena or melissa.

Worst for: sensitive or reactive facial skin (citral is a sensitizer), leave-on products at high concentrations, anyone with known citral allergy, products for very young children, formulas where scent longevity is critical (top note — fades quickly outside of soap).

Common pitfalls

Ignoring citral sensitization. Citral is a genuine sensitizer. The bright, appealing scent makes it tempting to use generously, but overdosing in leave-on products is a real safety issue. Always calculate your citral load, not just your litsea cubeba percentage.

Facial use at body rates. The face is more sensitive than the body. Using litsea cubeba at 1% on the face is too much for many people. Stay at 0.2-0.5% for facial products, or avoid it entirely in face formulas and use a safer lemon alternative.

Expecting longevity in perfume. Litsea cubeba is a top note. It will flash off within 1-2 hours in a perfume. Use it for the initial burst and pair it with longer-lasting citrus or woody notes for the dry-down.

Assuming it is the same as lemongrass. Lemongrass (Cymbopogon) also contains high citral, but the scent profile is different — more grassy and herbal. They are not interchangeable in fragrance blends even though the dominant molecule is the same.

Oxidation over time. Like most top-note oils, litsea cubeba does not have indefinite shelf life. Use within 12-18 months and store cool and dark.

Substitutes

• Lemongrass essential oil — also citral-dominant, but grassier and more herbal.
• Lemon verbena essential oil — similar bright citral scent, much more expensive.
• Melissa (lemon balm) essential oil — closest scent match, extremely expensive (often adulterated).
• Lemon essential oil — different chemistry (limonene-based, not citral), different safety profile (phototoxic instead of sensitizing).
• Citral isolate — the pure molecule, if you want precise dosing control.