Ingredient review
Ceylon Cinnamon Leaf Extract
INCI: CINNAMOMUM ZEYLANICUM LEAF EXTRACT
A fragrant leaf extract with antioxidant and antimicrobial benefits, but it can irritate sensitive skin and is best used in low concentrations.
In plain English
Ceylon cinnamon leaf extract comes from the leaves of the true cinnamon tree. It contains natural oils that give it a spicy scent and help fight bacteria and free radicals. However, these same oils can be irritating, so it's usually used in tiny amounts in skincare products. Think of it as a strong spice—a little adds warmth and benefit, but too much can cause redness or stinging.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- natural
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Ceylon Cinnamon Leaf Extract can be useful, but watch for some irritation potential.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Ceylon Cinnamon Leaf Extract.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
An extract obtained from the leaves of Cinnamomum zeylanicum (true cinnamon), rich in essential oils like eugenol and cinnamaldehyde.
How it works
The extract's phenolic compounds neutralize free radicals (antioxidant effect) and disrupt bacterial cell membranes (antimicrobial effect). In a formula, it also contributes a warm, spicy fragrance.
Pros
Natural antioxidant
Helps protect skin from free radical damage caused by UV and pollution, which can lead to premature aging.
Antimicrobial support
May help reduce surface bacteria, making it a useful addition for acne-prone skin when formulated at safe levels.
Cons and cautions
Irritation risk
The essential oils in cinnamon leaf extract can cause stinging, redness, or contact dermatitis, especially on sensitive or broken skin.
Strong scent
Its spicy fragrance can be overwhelming and may clash with other scented products, and it can be a sensitizer over time.
Best for
- Those with normal to oily skin looking for a natural antioxidant
- People who enjoy spicy, warm fragrances in their skincare
Use caution if
- Anyone with sensitive, reactive, or eczema-prone skin
- Those with a known allergy to cinnamon or balsam of Peru
Usage tips
Safety summary
Generally safe for most people at low concentrations, but carries a moderate risk of skin irritation and allergic reactions. Not recommended for sensitive or damaged skin. The fragrance component eugenol is a known allergen that must be listed separately on EU labels.
Research notes
Studies confirm antioxidant and antimicrobial activity of cinnamon leaf essential oil in lab settings. Human studies on topical use are limited, and most evidence comes from traditional use and in vitro research.
Common label clues
- Typical concentration
- Usually below 1% due to potential skin irritation
- Regulatory status
- Approved as a cosmetic ingredient in the EU and US, but restricted in concentration due to sensitization potential (e.g., EU limits eugenol to 0.5% in leave-on products).
- Common uses
- Fragranced creams, Antioxidant serums, Acne treatments
- Environmental note
- Cinnamon is widely cultivated in Sri Lanka and parts of Asia. Sustainable sourcing practices vary; look for brands that mention ethical or organic sourcing.
Good to know
- Ceylon cinnamon (Cinnamomum zeylanicum) is considered 'true cinnamon' and is milder than cassia cinnamon, but the leaf extract can still be potent.
- This extract is often used more for fragrance than for active skincare benefits in many commercial products.
Common questions
What is Ceylon Cinnamon Leaf Extract in beauty products?
Ceylon cinnamon leaf extract comes from the leaves of the true cinnamon tree. It contains natural oils that give it a spicy scent and help fight bacteria and free radicals. However, these same oils can be irritating, so it's usually used in tiny amounts in skincare products. Think of it as a strong spice—a little adds warmth and benefit, but too much can cause redness or stinging.
What does Ceylon Cinnamon Leaf Extract do in a beauty product?
The extract's phenolic compounds neutralize free radicals (antioxidant effect) and disrupt bacterial cell membranes (antimicrobial effect). In a formula, it also contributes a warm, spicy fragrance.
Is Ceylon Cinnamon Leaf Extract safe for most people?
Generally safe for most people at low concentrations, but carries a moderate risk of skin irritation and allergic reactions. Not recommended for sensitive or damaged skin. The fragrance component eugenol is a known allergen that must be listed separately on EU labels.
Who should be careful with Ceylon Cinnamon Leaf Extract?
Anyone with sensitive, reactive, or eczema-prone skin Those with a known allergy to cinnamon or balsam of Peru
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.