Constituent · Oxygenated monoterpene
α-terpineol
A lilac-like alcohol found in tea tree, pine and cajeput.
Essential oils richest in α-terpineol
Measured relative composition (GC peak-area %) pooled across published GC-MS samples — median, typical range (middle 50%) and the maximum seen.
| Oil | Median | Typical range | Max | Samples |
|---|---|---|---|---|
| Niaouli | 7.44% | 7.44%–7.44% | 7.44% | 1 |
| Cajeput | 6.76% | 5.49%–8.02% | 9.28% | 2 |
| Patchouli | 4.03% | 4.03%–4.03% | 4.03% | 1 |
| Myrtle | 3.91% | 2.1%–6.38% | 9.17% | 49 |
| Tea tree | 3.9% | 2.71%–9.65% | 12.9% | 7 |
| Petitgrain | 3.8% | 1.27%–5.31% | 7.82% | 11 |
| Marjoram | 3.05% | 2.01%–4.09% | 6.17% | 37 |
| Elemi | 2.7% | 2.7%–2.7% | 2.7% | 1 |
| Yarrow | 2.7% | 1.66%–4.46% | 7.23% | 13 |
| Rosemary | 2.38% | 1.7%–2.87% | 19.32% | 61 |
| Laurel | 2.31% | 1.92%–3.15% | 5.3% | 17 |
| Eucalyptus globulus | 2.29% | 0.56%–3.31% | 5.37% | 8 |
| Cardamom | 2.21% | 1.77%–2.82% | 9% | 27 |
| Ravintsara | 2.09% | 0.17%–8.11% | 17.8% | 10 |
| Spearmint | 2% | 0.29%–2.01% | 6.22% | 9 |
| Lavandin | 1.72% | 1.14%–2.73% | 7% | 30 |
| Wormwood | 1.68% | 0.73%–2.78% | 6.1% | 14 |
| Lime | 1.4% | 0.44%–1.69% | 13.12% | 38 |
| Lavender | 1.31% | 0.87%–2.4% | 19.01% | 111 |
| Clary sage | 1.3% | 1.15%–1.5% | 2.27% | 5 |
Oils in our library are linked above — open any profile for its full composition, safety panel and the research behind it.
Related constituents
Other oxygenated monoterpene compounds across the oils.
Figures are GC peak-area percentages pooled across published GC-MS samples, not concentrations, and describe chemistry — not health effects. How this is built →