Constituent · Monoterpene hydrocarbon
trans-ocimene
trans-ocimene is a light, volatile monoterpene hydrocarbon — the kind of fresh, often citrusy or piney top-note compound that evaporates fastest from an oil. Across our dataset it was measured in 13 oils (16 samples), concentrating most in Tarragon, Lemon, Lavandin.
Essential oils richest in trans-ocimene
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 |
|---|---|---|---|---|
| Tarragon | 3.47% | 3.47%–3.47% | 3.47% | 1 |
| Lemon | 1.02% | 1.02%–1.02% | 1.02% | 1 |
| Lavandin | 0.9% | 0.9%–0.9% | 0.9% | 1 |
| Helichrysum | 0.71% | 0.71%–0.71% | 0.71% | 1 |
| Mountain savory | 0.55% | 0.43%–0.68% | 0.8% | 2 |
| Rosemary | 0.35% | 0.35%–0.35% | 0.35% | 1 |
| Lemongrass | 0.2% | 0.2%–0.2% | 0.2% | 1 |
| Petitgrain | 0.19% | 0.19%–0.19% | 0.19% | 1 |
| Citronella | 0.15% | 0.15%–0.15% | 0.15% | 1 |
| Oregano | 0.08% | 0.07%–0.09% | 0.1% | 3 |
| Pine | 0.03% | 0.03%–0.03% | 0.03% | 1 |
| Thyme | 0.03% | 0.03%–0.03% | 0.03% | 1 |
| Geranium | 0.02% | 0.02%–0.02% | 0.02% | 1 |
Oils in our library are linked above — open any profile for its full composition, safety panel and the research behind it.
Related constituents
Other monoterpene hydrocarbon 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 →