Clove: Uses, Benefits, Dosage & Safety
Last updated: June 2026 · Reviewed by the FactoWiki Editorial Team for clarity and source accuracy
Quick summary
Clove and its oil are best known for dental pain relief thanks to eugenol. Topical/dental use has real support; high-dose oral clove oil can be harmful.
What is Clove?
Clove (Syzygium aromaticum) is the aromatic flower bud of a tree, used as a spice and traditional remedy, especially for toothache. Its oil is rich in eugenol.
What Clove is commonly used for
In supplements, Clove is most often included for oral & dental health, gut & digestive health support. It is used as nutritional support, not as a treatment for any medical condition — the distinction matters, because the claims on a sales page are often stronger than the evidence allows.
How Clove works
Eugenol has genuine local anaesthetic and antibacterial properties, which is why it has long been used in dentistry and appears in some dental products.
What the evidence says
Here's an honest snapshot of what published research suggests about Clove — including where the evidence is limited.
- Clove oil has good support as a temporary topical remedy for dental pain and is used in dentistry; eugenol's antimicrobial effects are well documented. Evidence for oral clove supplements treating other conditions is weaker.
- Study quality and doses vary, and a result seen in research doesn't guarantee the same for any individual — use the sources below to check the current evidence on Clove rather than relying on marketing claims.
Typical dosage used in studies
Dental use applies small amounts of diluted oil topically; culinary use is as a spice. Concentrated oil is not meant to be swallowed in quantity. This is general information from research, not a personal recommendation or a dosing instruction.
Side effects and safety
Swallowing clove oil, especially by children, can cause serious toxicity including liver injury and seizures. Undiluted oil can irritate skin and gums, and eugenol may affect bleeding. As with any supplement, it's sensible to introduce Clove on its own, use a trusted brand, and stop if you notice any reaction.
Medication interactions and who should avoid Clove
Medication & safety check
Herbs interact with prescription medicines more often than people expect — affecting drug levels, bleeding, blood pressure, blood sugar or sedation — and Clove is no exception. If you take any regular medication, are pregnant or breastfeeding, or manage a health condition, confirm Clove is appropriate for you before starting.
This is general information, not personal medical advice. If you take any medication, are pregnant or breastfeeding, or have a health condition, confirm it's safe to use Clove with your doctor or pharmacist first.
Sources & further reading
For authoritative background and the current research base on Clove, consult:
- PubMed — search the research on Clove
- NCCIH — Herbs at a Glance
- MedlinePlus — herbs & supplements
- MedlinePlus — drugs, herbs & supplements
Frequently asked questions
Does Clove actually work?
Clove oil has good support as a temporary topical remedy for dental pain and is used in dentistry; eugenol's antimicrobial effects are well documented. Evidence for oral clove supplements treating other conditions is weaker. As with most supplements, results vary between people and the marketing is often stronger than the evidence — so it's worth checking the research before relying on it.
Is Clove safe to take?
For most healthy adults at normal doses it's generally well tolerated, but there are real cautions. Swallowing clove oil, especially by children, can cause serious toxicity including liver injury and seizures. Undiluted oil can irritate skin and gums, and eugenol may affect bleeding. If you take medication, are pregnant or breastfeeding, or have a health condition, check with a doctor or pharmacist first.
What is Clove used for?
In supplements, Clove is mainly included for oral & dental health, gut & digestive health support — as nutritional support, not as a treatment for any medical condition.
Where you'll find Clove
On FactoWiki, Clove is the kind of ingredient you'll see discussed in these supplement categories. Each category guide breaks down what the evidence does and doesn't support.
Related ingredients to explore
Ingredients often studied or formulated alongside Clove — useful for understanding the full picture of a formula.