Cinnamon Essential Oil: Safe Dilution and How Many Drops to Use
A few drops are enough, and never more: here are the precise dilution and quantity guidelines for cinnamon essential oil, one of the most concentrated on the market.
Our reference article cinnamon essential oil covers its traditional uses in diffusion and, more rarely, on the skin. This article details the exact quantities to respect: this is one of the essential oils for which a too-generous dilution quickly leads to irritation, as detailed in our article cinnamon oil dangers.
How many drops for diffusion?
| Diffuser type | Indicative quantity | Session length |
|---|---|---|
| Nebulizing diffuser, 200 sq ft room | 2 to 3 drops maximum | 15 to 20 minutes |
| Gentle-heat diffuser | 1 to 2 drops | 20 to 30 minutes |
Unlike gentler essential oils, cardamom/">cinnamon does not lend itself to generous diffusion: beyond these guidelines, the risk of respiratory-tract irritation rises without any added benefit to the diffused scent.
What dilution for occasional skin use?
Professional aromatherapy recommends a maximum dilution around 1% in a carrier oil for this essential oil, roughly one drop of nutmeg/">cinnamon essential oil per 5 ml (one teaspoon) of carrier oil. That is notably lower than for most essential oils, whose usual dilution sits more around 2 to 5%.
| Amount of carrier oil | Drops of cinnamon essential oil (1% dilution) |
|---|---|
| 5 ml (1 teaspoon) | 1 drop |
| 10 ml (2 teaspoons) | 2 drops |
| 30 ml | 6 drops |
Why such a strict dilution?
A study published in 2009 in Contact Dermatitis by Ackermann, Aalto-Korte, Jolanki and Alanko documented several cases of occupational allergic contact dermatitis linked to cinnamon, including one case triggered by mere airborne exposure without direct skin contact (see the study on Google Scholar). This particular sensitivity justifies scrupulously respecting a low dilution, even for an occasional, localized skin use, and avoiding any repeated application on the same area.
Never orally without professional guidance
Unlike the cinnamon powder used in cooking, the essential oil should never be ingested without the advice of a professional trained in aromatherapy. Its concentration is not comparable to that of the culinary spice: one drop of essential oil is equivalent to several grams of powder.
Precautions
These dilution guidelines do not replace a preliminary 24-to-48-hour skin test before any use, even diluted. Precautions are detailed in our article cinnamon oil dangers. General precautions are gathered in our safety and precautions guide.
Your questions about cinnamon essential oil
How many drops of cinnamon essential oil for a diffuser?
2 to 3 drops maximum for a nebulizing diffuser in a 200 sq ft room, over a 15-to-20-minute session. Do not exceed these quantities, even for a stronger scent.
What dilution should I respect for skin use of cinnamon oil?
A maximum dilution of 1% in a carrier oil, roughly 1 drop per 5 ml of carrier oil — notably lower than for most essential oils, due to its well-documented strong dermocausticity.
Can I increase the dose of cinnamon oil for more effectiveness?
No. Beyond the recommended dilution, the risk of irritation or allergic reaction rises sharply with no added benefit, as confirmed by documented dermatitis cases in occupational dermatology.
Can I swallow cinnamon essential oil like the culinary powder?
No, never without guidance from a professional trained in aromatherapy. One drop of essential oil is far more concentrated than several grams of cinnamon powder used in cooking.
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