Petitgrain (Citrus aurantium)
Petitgrain is steam-distilled from bitter orange leaves and twigs — a green, slightly floral citrus oil distinct from neroli or orange peel oil.
How to use it
3–5 drops is a refreshing, daytime-friendly scent that layers with florals and woodsy notes.
Dilute to 2–4% in a carrier oil; also popular in scalp and hair-care blends.
Safety in detail
- Max dermal use
- Dilute in a carrier oil for skin
- Phototoxic
- No
- A gentle, well-tolerated oil; it contains linalool and linalyl acetate, so patch-test if you have sensitive skin.
- Not phototoxic — distilled from leaves, it carries none of the phototoxic coumarins of citrus peel oils.
- Keep out of reach of children.
Composition & chemistry
Aggregated from 15 GC-MS samples across 9 peer-reviewed open-access studies (2016–2026). Figures are the distribution across those samples — median with interquartile range — not a single reading.
- Oxygenated monoterpene 64.1%
- Monoterpene hydrocarbon 30.5%
- Oxygenated sesquiterpene 2.3%
- Sesquiterpene hydrocarbon 1.7%
- Unclassified 1.3%
| Constituent | Median | Typical range | Max | Detected in |
|---|---|---|---|---|
| limonene ↗ C10H16 | 33.4% | 3.9–85.3% | 95.3% | |
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| linalyl acetate ↗ C12H20O2 | 22.2% | 6.8–40.9% | 57.1% | |
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| linalool ↗ C10H18O | 7.7% | 1.5–26.4% | 30.2% | |
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| geranyl acetate ↗ C12H20O2 | 4.8% | 2.7–6.0% | 10.1% | |
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| nerolidol ↗ C15H26O | 4.6% | 3.4–5.2% | 6.9% | |
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| α-terpineol ↗ C10H18O | 3.8% | 2.1–5.4% | 7.1% | |
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| myrcene ↗ C10H16 | 1.3% | 1.1–1.7% | 3.5% | |
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| β-pinene ↗ C10H16 | 1.0% | 0.8–1.6% | 4.0% | |
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| terpinolene ↗ C10H16 | 0.4% | 0.3–0.4% | 0.4% | |
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| β-caryophyllene ↗ C15H24 | 0.4% | 0.2–0.9% | 1.0% | |
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| α-pinene ↗ C10H16 | 0.2% | 0.2–0.3% | 0.4% | |
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+ 53 more compounds reported across the dataset.
9 peer-reviewed sources behind these figures
- Elhawary EA, Nilofar N, Zengin G, Eldahshan OA. (2024). Variation of the essential oil components of Citrus aurantium leaves upon using different distillation techniques and evaluation of their antioxidant, antidiabetic, and neuroprotective effect against Alzheimer's disease. BMC complementary medicine and therapies.
- EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Bampidis V, Azimonti G, Bastos ML, Christensen H, Fašmon Durjava M, Kouba M, López-Alonso M, López Puente S, Marcon F, Mayo B, Pechová A, Petkova M, Ramos F, Ramos F, Sanz Y, Villa RE, Woutersen R, Brantom P, Chesson A, Westendorf J, Manini P, Pizzo F, Dusemund B. (2021). Safety and efficacy of a feed additive consisting of an essential oil from the leaves of Citrus × aurantium L. (petitgrain bigarade oil) for use in all animal species (FEFANA asbl). EFSA journal. European Food Safety Authority.
- Ellouze I, Ben Akacha B, Mekinić IG, Ben Saad R, Kačániová M, Kluz MI, Mnif W, Garzoli S, Ben Hsouna A. (2024). Enhancing Antibacterial Efficacy: Synergistic Effects of Citrus aurantium Essential Oil Mixtures against Escherichia coli for Food Preservation. Foods (Basel, Switzerland).
- Zhang Q, Song W, Tao G, Li Q, Wang L, Huang W, Gao L, Yin L, Ye Y. (2023). Comparison of Chemical Compositions and Antioxidant Activities for the Immature Fruits of Citrus changshan-huyou Y.B. Chang and Citrus aurantium L. Molecules (Basel, Switzerland).
- Elmaidomy AH, Mohamed EM, El-Dien RTM, Abou-Zied HA, Mostafa AA, Taha RH, El-Badry MA, Abdelmohsen UR, Youssif KA. (2026). Chemical composition and insecticidal activity of essential oils from Citrus limon, Citrus aurantium, and Citrus margarita against Musca domestica. Scientific reports.
- Ailli A, Handaq N, Touijer H, Gourich AA, Drioiche A, Zibouh K, Eddamsyry B, El Makhoukhi F, Mouradi A, Bin Jardan YA, Bourhia M, Elomri A, Zair T. (2023). Phytochemistry and Biological Activities of Essential Oils from Six Aromatic Medicinal Plants with Cosmetic Properties. Antibiotics (Basel, Switzerland).
- Taiti C, Di Sotto A, Stefano G, Percaccio E, Iannone M, Marianelli A, Garzoli S. (2023). Identification of Volatile Molecules and Bioactivity of Gruyt Craft Beer Enriched with Citrus aurantium var. dulcis L. Essential Oil. International journal of molecular sciences.
- Badalamenti N, Bruno M, Schicchi R, Geraci A, Leporini M, Gervasi L, Tundis R, Loizzo MR. (2022). Chemical Compositions and Antioxidant Activities of Essential Oils, and Their Combinations, Obtained from Flavedo By-Product of Seven Cultivars of Sicilian Citrus aurantium L. Molecules (Basel, Switzerland).
- Sanei-Dehkordi A, Sedaghat MM, Vatandoost H, Abai MR. (2016). Chemical Compositions of the Peel Essential Oil of Citrus aurantium and Its Natural Larvicidal Activity against the Malaria Vector Anopheles stephensi (Diptera: Culicidae) in Comparison with Citrus paradisi. Journal of arthropod-borne diseases.
Every figure above traces to a named table in one of these open-access papers. How this was built →
- Linalyl acetate — the dominant soft-floral ester, shared with lavender and clary sage, associated with a calming character Italian Citrus Petitgrain Oils study (1997)
The leafy member of the bitter-orange trio, sitting between sweet orange peel and delicate neroli.
What the research says
An honest read of the published research — what has actually been studied, at what stage. Not medical advice or a promise of results.
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Petitgrain shares its calming, linalool-and-linalyl-acetate chemistry with lavender and neroli. Its relaxing reputation is traditional and preliminary rather than clinically established.
Italian Citrus Petitgrain Oils study (1997)
Evidence & sources
Peer-reviewed research on Petitgrain's chemistry and safety. These describe composition and documented effects — not health or treatment claims.
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Petitgrain is an ester-rich oil dominated by linalyl acetate and linalool — a soft, green-floral profile close to neroli's, from the same tree.
Italian Citrus Petitgrain Oils study (1997)
Frequently asked questions
What is petitgrain made from?
Petitgrain is distilled from the leaves and twigs of the bitter orange tree (Citrus aurantium) — the same tree that gives neroli (from the blossoms) and bitter orange (from the peel). Three oils, three plant parts. Italian Citrus Petitgrain Oils study (1997)
Is petitgrain phototoxic?
No — because it's distilled from leaves rather than pressed from peel, it carries no phototoxic coumarins. There's no sun-exposure restriction. Italian Citrus Petitgrain Oils study (1997)
How is petitgrain different from neroli?
Both are ester-rich and calming, but petitgrain (leaves/twigs) is greener, fresher, and far more affordable, while neroli (blossoms) is softer, sweeter, and much pricier.
Gallery
The tree & source
Petitgrain comes from Citrus aurantium, the bitter (Seville) orange tree — the same single tree that also yields neroli from its blossoms and bitter orange oil from its peel, making it one of the few plants in aromatherapy to supply three genuinely distinct essential oils.
A name with history
“Petitgrain” is French for “little grain,” a name left over from an older era of production when distillers actually used the small, unripe green fruits of the orange tree rather than its leaves. Once growers realized that distilling the leaves and twigs gave a comparable aroma at a far higher yield — without sacrificing the developing fruit — the industry shifted to leaf distillation, but the old name stuck.
How it’s extracted
The oil is steam-distilled from the leaves and twigs, a much more sustainable and higher-yield process than the historical fruit-based method.
Aroma
Green, woody, and softly floral — less sweet than orange peel oil and less delicate than neroli, sitting somewhere between the two as the “leafy” member of the trio.
Traditional & everyday uses
Petitgrain has long been a component of classical perfumery, forming part of traditional eau de cologne formulas alongside neroli and bergamot.
In the diffuser: 3–5 drops is a refreshing, daytime-friendly scent that layers easily with both florals and woodsy base notes.
On skin: dilute to 2–4% in a carrier oil. Because it’s a leaf oil rather than an expressed peel oil, petitgrain doesn’t carry the phototoxicity concerns of cold-pressed citrus peel oils, though patch-testing is still worthwhile — it’s also a popular addition to scalp and hair-care blends.