Estragole in Fennel Oil: What the Regulators Actually Said
What the EMA, EFSA and other regulators actually wrote about estragole in fennel oil, with the dose arithmetic for a bottle and its limits.
Fennel Essential Oil Benefits: What the Research Actually Shows
Each claimed benefit of fennel essential oil graded by evidence, with the form actually tested, who ran the trials and what each study could not show.
Fennel Oil and IBS: What the Trials Did and Did Not Test
The two fennel oil and turmeric IBS studies compared: design, size, funding ties and why neither isolates fennel or applies to oil on skin.
Fennel Oil and Menopause: Estrogenic Claims vs Trial Data
Where the estrogen-like claim for fennel comes from, what the small menopause trials tested, and what the 2023 NAMS statement says about herbal products.
Fennel Oil and Menstrual Cramps: Reading the Trials Honestly
Which fennel preparations were tested for period pain, what the pooled trials found, how certain they are, and who should avoid it. A sourced evidence.
Fennel Oil and Nausea: What Inhalation Studies Do and Don't Show
No fennel oil inhalation trial for nausea turned up. What reviews of inhaled aromatherapy for nausea found in hospitals, and what that means at home.
Fennel Oil Around Dogs and Cats: What the Evidence Covers
ASPCA listing, a 2023 EFSA opinion on fennel oil in dog and cat food, cat metabolism and a species table showing what is documented and what is not.
Fennel Oil Around Babies and Children: Where the Line Sits
EMA age limits for fennel in children, the infant colic trial that gets quoted, essential oil poisoning data, and why the bottle stays out of reach.
Fennel Oil Contraindications and Medication Interactions
Fennel oil contraindications and medication interactions in one table, with an evidence rating per row and what we could not verify.
Fennel Essential Oil for Bloating and Digestion: Does It Help?
What trials of fennel tea, capsules and oil show for bloating and gas, what they do not, and which symptoms mean seeing a doctor first.
Fennel Oil as an Insect Repellent: What the Mosquito Studies Say
The published mosquito studies on fennel oil, how they compare with DEET and CDC-listed repellents, and why this page offers no homemade recipe.
Fennel Oil and Oral Health: What Breath and Mouth Studies Show
What bad-breath research points to, which fennel studies exist, what they tested, and why undiluted essential oil does not belong in the mouth.
Fennel Oil in Pregnancy and Breastfeeding: Why We Say Leave It Out
What EMA documents, rodent data and galactagogue trials say about fennel in pregnancy and nursing, why they concern tea not oil, and the estragole math.
Is Fennel Essential Oil Safe? Who Should Skip It and Why
Fennel essential oil safety explained: who should skip it, why, and how to use it with care on skin, in the air and never by mouth.
What Does Fennel Essential Oil Smell Like? A Full Scent Profile
Explore the full scent profile of fennel essential oil: its anise-sweet aroma, key chemical compounds, quality indicators, and safe usage tips.
Why Fennel Essential Oil Is Pale Yellow: Color, Clarity, and Quality
Why is fennel essential oil pale yellow? Explore the chemistry behind its color, clarity, and what both tell you about sourcing and quality.
A Short History of Fennel: From Mediterranean Hillsides to the Modern Still
Trace foeniculum vulgare history from ancient Mediterranean hillsides to modern distillation — chemistry, sourcing, safety, and research observations.
The Linalool Connection: Fennel's Supporting Aroma Molecules
Explore fennel essential oil chemistry beyond anethole — linalool, fenchone, estragole, and what research observations mean for your blending practice.
