Manuka (Leptospermum scoparium)
A gentle New Zealand relative of tea tree, prized in skin care for a softer aroma and soothing, everyday topical use.
How to use it
3–5 drops for a warm, grounding scent that suits the evening or a quiet background.
Dilute to 1–3% in a carrier oil and patch-test — many find it gentler than tea tree.
Safety in detail
- Max dermal use
- Dilute in a carrier oil for skin
- Phototoxic
- No
- A generally gentle oil; dilute before topical use as usual.
- Not phototoxic. Keep out of reach of children.
Sources: Phytothérapie review (2010)
Composition & chemistry
Aggregated from 4 GC-MS samples across 4 peer-reviewed open-access studies (2020–2026). Figures are the distribution across those samples — median with interquartile range — not a single reading.
- Sesquiterpene hydrocarbon 54.6%
- Oxygenated sesquiterpene 25.5%
- Unclassified 11.7%
- Other terpenoid/aromatic 6.4%
- Monoterpene hydrocarbon 1.8%
| Constituent | Median | Typical range | Max | Detected in |
|---|---|---|---|---|
| cis-calamenene ↗ C15H22 | 21.6% | 20.4–22.8% | 24.0% | |
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| α-selinene ↗ C15H24 | 5.5% | 3.8–7.7% | 9.2% | |
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| α-cubebene ↗ C15H24 | 4.8% | 3.4–6.2% | 6.5% | |
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| δ-cadinene ↗ C15H24 | 4.3% | 4.1–5.3% | 6.4% | |
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| α-copaene ↗ C15H24 | 4.2% | 4.1–4.6% | 5.0% | |
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| β-selinene ↗ C15H24 | 3.9% | 3.3–5.1% | 8.4% | |
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| β-copaene ↗ C15H24 | 3.0% | 1.6–4.5% | 5.9% | |
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| γ-muurolene ↗ C15H24 | 1.7% | 1.7–1.7% | 1.7% | |
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| globulol ↗ C15H26O | 1.4% | 0.9–1.9% | 2.4% | |
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| α-pinene ↗ C10H16 | 1.4% | 1.1–1.7% | 2.0% | |
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| cubenol ↗ C15H26O | 1.3% | 1.3–1.3% | 1.3% | |
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| β-elemene ↗ C15H24 | 1.0% | 1.0–1.0% | 1.1% | |
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+ 25 more compounds reported across the dataset.
4 peer-reviewed sources behind these figures
- Lee NH, Munkhtur E, Lee HS. (2026). Leptospermone acts as a predominantly non-competitive β-triketone inhibitor of tyrosinase. Scientific reports.
- Bass NI, Parekh MY, Satyal P, Soni S, Jacob JA, Mack JP, Lobo DE. (2024). Manuka Essential Oil Triggers Apoptosis and Activation of c-Jun N-Terminal Kinase in Fibroblasts and Fibrosarcoma Cells. Molecules (Basel, Switzerland).
- Pedonese F, Longo E, Torracca B, Najar B, Fratini F, Nuvoloni R. (2022). Antimicrobial and anti-biofilm activity of manuka essential oil against Listeria monocytogenes and Staphylococcus aureus of food origin. Italian journal of food safety.
- Muturi EJ, Selling GW, Doll KM, Hay WT, Ramirez JL. (2020). Leptospermum scoparium essential oil is a promising source of mosquito larvicide and its toxicity is enhanced by a biobased emulsifier. PloS one.
Every figure above traces to a named table in one of these open-access papers. How this was built →
- Leptospermone (β-triketones) — the signature manuka constituents; the focus of its antimicrobial research and a key marker of oil quality Phytothérapie review (2010)
Softer, sweeter and earthier than tea tree — closer to a forest-floor scent than a first-aid one.
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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Manuka oil's β-triketones (leptospermone and relatives) have been studied for antimicrobial activity in the laboratory, sometimes compared with tea tree. These are in-vitro findings, not clinical proof of benefit.
Phytothérapie review (2010)
Evidence & sources
Peer-reviewed research on Manuka's chemistry and safety. These describe composition and documented effects — not health or treatment claims.
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High-grade manuka oil is distinguished by its β-triketone content (leptospermone), the constituents most associated with its studied antimicrobial activity.
Phytothérapie review (2010)
Frequently asked questions
Is manuka oil the same as manuka honey?
They come from the same plant but are different products. Manuka honey's activity is tied to methylglyoxal; the essential oil's activity is tied to its β-triketones. Don't assume claims about one apply to the other. Phytothérapie review (2010)
How is manuka different from tea tree?
Both are Australasian Myrtaceae oils studied for antimicrobial activity, but they're chemically different — tea tree is terpinen-4-ol-driven, manuka is triketone/sesquiterpene-driven. Manuka is often described as gentler-smelling. Phytothérapie review (2010)
Is manuka oil phototoxic?
No — manuka isn't phototoxic, so there's no sun-exposure restriction. Just dilute it for skin use as usual.
Gallery
Manuka (Leptospermum scoparium) is steam-distilled from a shrub native to New Zealand, in the same broad Myrtaceae family as tea tree but with a softer, sweeter, more earthy aroma. The plant is far better known outside aromatherapy for manuka honey, produced by bees foraging its flowers — but the essential oil comes from the leaves and twigs, a completely different part of the plant with a different chemical profile from the honey.
Manuka honey vs. manuka oil
It’s worth being precise here: manuka essential oil and manuka honey are different products from different parts of the same plant, with different chemistry and different traditions of use. Claims or research about one don’t automatically transfer to the other, despite the shared name and origin.
Aroma character
Warm, earthy, and slightly honeyed-woodsy — softer than tea tree’s sharp, medicinal edge, closer to a mellow forest-floor scent than a first-aid-cabinet one.
In the diffuser
3–5 drops gives a warm, grounding scent that works well in the evening or as a quiet background note rather than an energizing daytime one.
On skin
Many people find manuka gentler than tea tree for everyday use in blemish-prone or sensitive-skin routines; dilute to 1–3% in a carrier oil and patch-test first, as with any new oil.
What pairs well
Its earthy-woodsy character blends naturally with lavender, tea tree, or other Australasian oils like kunzea.
A note on New Zealand sourcing
Manuka grows across both the North and South Islands, often in the same rugged, marginal land where sheep farming dominates — a reflection of how tough and adaptable the shrub is.