Constituent · Oxygenated sesquiterpene
germacrene d-4-ol
germacrene d-4-ol is an oxygenated sesquiterpene — a heavy, tenacious woody or earthy compound. Across our dataset it was measured in 13 oils (37 samples), concentrating most in Wormwood, Spike lavender, Vetiver.
Essential oils richest in germacrene d-4-ol
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 |
|---|---|---|---|---|
| Wormwood | 5.35% | 5.35%–5.35% | 5.35% | 1 |
| Spike lavender | 3.44% | 3.28%–3.58% | 5.19% | 11 |
| Vetiver | 3.04% | 3.04%–3.04% | 3.04% | 1 |
| Citronella | 1.9% | 1.9%–1.9% | 1.9% | 1 |
| Juniper | 1.15% | 1.08%–1.23% | 1.3% | 2 |
| Melissa | 0.93% | 0.71%–1.45% | 1.96% | 3 |
| German chamomile | 0.57% | 0.54%–0.6% | 0.63% | 2 |
| Thyme | 0.5% | 0.2%–0.6% | 1.6% | 9 |
| Ravintsara | 0.4% | 0.4%–0.4% | 0.4% | 1 |
| Carrot seed | 0.27% | 0.27%–0.27% | 0.27% | 1 |
| Black pepper | 0.17% | 0.17%–0.17% | 0.17% | 1 |
| Ylang ylang | 0.15% | 0.14%–0.15% | 0.16% | 2 |
| Basil | 0.03% | 0.03%–0.04% | 0.04% | 2 |
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 sesquiterpene 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 →