Where May Chang Oil Fits: Candles, Sprays, Soap and More
Litsea cubeba has a lemon-drop sparkle that fits in more places than you might guess, from a candle on the kitchen counter to a bar of soap. It fits differently in each one, because the amount of oil a product can sensibly hold follows what the product is. Sorting by product type makes the ideas easy to judge.
Litsea Cubeba Essential Oil
Our own Litsea Cubeba Essential Oil, in sizes from 0.5 oz to bulk.
From $12.99
Shop Now →Why the product decides the dose
Litsea oil is mostly citral. Si and colleagues measured 78.7% to 87.4% in fruit oils from eight sites in China, while the batch means in the EFSA opinion on a commercial steam-distilled oil add up to about 66%. Our certificate of analysis for one batch gives density, refractive index and optical rotation, not citral, so we use both ends as an illustration. The IFRA citral standard caps citral in each finished product category, and the IFRA guidance says which products belong where. Dividing the cap by the citral share gives the most litsea oil a product can hold:
| Product | IFRA category | Citral cap | Most litsea oil |
|---|---|---|---|
| Candle, incense, sachet | 12 | none | no citral cap |
| Room or air spray | 10B | 4.2% | about 4.8% to 6.4% |
| Fabric spray, surface cleaner, reed diffuser oil | 10A | 1.2% | about 1.4% to 1.8% |
| Bar soap, shower gel | 9 | 1.2% | about 1.4% to 1.8% |
| Fine fragrance, solid perfume | 4 | 0.60% | about 0.69% to 0.91% |
| Body lotion or oil | 5A | 0.15% | about 0.17% to 0.23% |
These caps are an industry framework for fragrance makers, not a law for home crafters, and the guidance itself notes that following them may not be enough for regulatory compliance. Anyone selling a product should work with a cosmetic chemist. For a home maker, though, they are the best published yardstick we know of.
Where litsea has the most freedom
Candles sit in the category with the most room, because the guidance counts skin exposure from a candle as negligible, so citral is not the limit. In wax the limits come from the wax maker and from burning behaviour, and our candle article does the wax arithmetic. We also suggest a cotton pad with a little oil tucked into a gym bag or shoe closet. The guidance does not name a pad, and the nearest entry is a fragrancing sachet, so keep the oil on the pad and the amount modest.
Sprays are the happy middle. A room or linen spray in a solubiliser base could hold several percent oil on paper, far more than a pleasant spray needs, so the practical question is how to get the oil to mix, not how much is allowed. A reed diffuser oil is capped at about 1.4% to 1.8% litsea, and our reed diffuser article shows how quickly a typical fragrance share overshoots that.
Soap and perfume
For soap, the citral cap works out to roughly 14 to 18 g of litsea per kilogram of finished soap, and we suggest a small test batch first. Our soap article walks through the numbers. A perfume is tighter: at the fine fragrance cap, a concentrate that is 10% of the product can hold about 7% to 9% litsea by weight, which shows how little this oil needs to do the job. The scent profile explains what you will smell.
Skin is where we go slowest
Our guidance for skin is 0.5% to 2% in a carrier oil, with a patch test, and we recommend starting at the lower end. Taking the citral in litsea at 66% to 87.4%, 0.5% oil carries about 0.33% to 0.44% citral, which is two to three times the body-lotion cap, and 2% is roughly nine to twelve times. So for a leave-on body product we would begin even lower than 0.5% and read the skin basics article first. The reason is sensitisation: Hagvall and colleagues patch tested 1,476 dermatitis patients and found positive reactions to citral in 2.9%. That is a clinic population, but it explains why the caps are so low.
The oil is not for internal use, so it does not belong in food. We keep the fruit-as-spice story separate in our kitchen article. The oil is a cosmetic fragrance material and we make no medical claims for it; for babies, pets and pregnancy see our pets article and pregnancy and children article. The wax, soap base, carrier oil and sprayer for these projects come from craft and supply shops.
Pick the project, find its category, do the division, and you will know quickly whether may chang suits the idea.
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
- Chemical composition of essential oils of Litsea cubeba harvested from its distribution areas in China (Si et al., Molecules, 2012)
- Safety and efficacy of a feed additive consisting of an essential oil from the fruits of Litsea cubeba (Lour.) Pers. (litsea berry oil) for use in all animal species (FEFANA asbl) (EFSA Panel on Additives and Products or Substances used in Animal Feed, EFSA Journal, 2021)
- IFRA Standard: Citral, 2020 (Amendment 49)
- Guidance for the use of IFRA Standards, 51st Amendment (IFRA, June 30, 2023)
- Contact allergy to citral and its constituents geranial and neral, coupled with reactions to the prehapten and prohapten geraniol (Hagvall et al., Contact Dermatitis, 2020)