Fennel (Sweet) (Foeniculum vulgare) is a herbaceous essential oil with a sweet, anise-like aroma and a heart note. Steam distillation from seed, it is a versatile blending oil that pairs well with Lavender, Lemon (Cold Pressed), Blood Orange. For topical use, keep dilution at or below 2.5%.
Fennel (Sweet) (Foeniculum vulgare) is a herbaceous essential oil, steam-distilled from the seed, produced in Egypt and France. Its aroma is sweet, anise-like, sitting as a heart note in a blend. It's commonly paired with Lavender, Lemon (Cold Pressed), Sweet Orange, Cardamom. Keep topical use at or below 2.5%. It is noted for estrogenic. Always patch-test first.
Aroma & character
Aroma
Traditional aromatherapy associations
Traditional associations only — not medical claims or evidence of efficacy.
Properties
| Perfumery note | Heart |
| Aroma family | Herbaceous |
| Chemical family | Ether |
| Material type | Essential oil |
| Extraction | Steam distillation |
| Plant part | seed |
| Origin | Egypt, France, India |
| Blending factor | 3 |
| Volatility index | 3 |
| Tenacity (hours) | 6.0 |
| CAS number | 8006-84-6 |
Safety & dilution
| Max topical dilution | 2.5% |
| Max facial dilution | 1.25% |
| Pregnancy | Not recommended |
| Nursing | Not recommended |
| Children | Not recommended for young children |
| Cats | Not recommended |
| Dogs | Generally suitable when properly diluted |
Safety flags
Evidence: Traditional — EODB: 2 GC-MS analyses (Foeniculum vulgare).
For education only — not medical or veterinary advice. Essential oils are not intended to diagnose, treat, cure, or prevent any condition. Always patch-test and consult a qualified professional before use during pregnancy, on children, with pets, or with a health condition.
Plan safe amounts with our essential oil dilution calculator.
Blends well with
Used in these blends
Frequently asked questions
What does Fennel (Sweet) smell like?
Fennel (Sweet) has a sweet, anise-like aroma, classed as a herbaceous oil with a heart note.
What is the safe dilution for Fennel (Sweet)?
For topical use, keep Fennel (Sweet) at or below 2.5%, and 1.25% on facial skin. Always patch-test before wider use.
Is Fennel (Sweet) safe to use during pregnancy?
Fennel (Sweet) carries a pregnancy caution in our dataset and is not recommended during pregnancy. Consult a qualified healthcare provider before any use.
Is Fennel (Sweet) safe to use around children?
Fennel (Sweet) is not recommended for young children. Consult a professional before use.
Is Fennel (Sweet) safe around pets?
For cats — avoid; not considered safe; dogs — generally lower-risk when well diluted. Diffuse only in ventilated spaces and consult a veterinarian.
What does Fennel (Sweet) blend well with?
Fennel (Sweet) pairs well with Lavender, Lemon (Cold Pressed), Blood Orange, Cardamom, Geranium.