Ingredient review
Cinnamyl Formate
INCI: Cinnamyl Formate
Cinnamyl Formate adds a sweet, balsamic scent to products but can be a skin sensitizer for some people.
In plain English
Cinnamyl Formate is a man-made chemical that smells like cinnamon and balsam. It's added to perfumes, lotions, and other scented products to give them a warm, sweet fragrance. Because it's a known fragrance allergen, people with sensitive skin or allergies may want to check for it on the label.
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
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Cinnamyl Formate 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 Cinnamyl Formate.
- 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
Cinnamyl Formate is an ester formed from cinnamyl alcohol and formic acid. It is a synthetic fragrance compound that occurs naturally in some plants but is usually manufactured for use in cosmetics.
How it works
In a cosmetic product, Cinnamyl Formate acts solely as a fragrance ingredient. It evaporates from the skin, releasing a sweet, cinnamon-like scent that enhances the sensory experience of the product. It has no known skin-beneficial properties beyond scent.
Pros
Pleasant scent
Adds a warm, sweet, balsamic fragrance that many people find appealing in perfumes and scented products.
Widely used
Commonly found in many fragranced cosmetics, making it easy to find products with this scent profile.
Cons and cautions
Potential allergen
Cinnamyl Formate is a known skin sensitizer and is listed as a common fragrance allergen in the EU, meaning it can cause allergic reactions in some people.
No skin benefit
This ingredient serves only as a fragrance and provides no moisturizing, anti-aging, or other skin-improving properties.
Best for
- People who enjoy warm, spicy fragrances and do not have sensitive skin
- Those without a known allergy to fragrance ingredients
Use caution if
- Individuals with sensitive skin, eczema, or a known allergy to fragrance or cinnamon derivatives
Usage tips
Safety summary
Cinnamyl Formate is considered safe for use in cosmetics at typical concentrations, but it is a known skin sensitizer. People with fragrance allergies or sensitive skin should use caution and check product labels.
Research notes
Research confirms that Cinnamyl Formate can cause allergic contact dermatitis in sensitized individuals. It is regulated as a fragrance allergen in the EU. No significant safety concerns exist for the general population at low concentrations.
Common label clues
- Typical concentration
- Typically used at very low levels, often below 1% in leave-on products.
- Regulatory status
- Approved for use in cosmetics in the US and EU, but must be listed on the label in the EU if above 0.01% in leave-on products or 0.001% in rinse-off products due to its allergen status.
- Common uses
- Perfumes, Fragranced lotions, Scented cleansers
- Environmental note
- As a synthetic compound, its environmental impact depends on manufacturing practices and disposal. It is not known to be a major environmental concern at typical usage levels.
Good to know
- Cinnamyl Formate is one of 26 fragrance allergens that must be listed on the label in the European Union if present above a certain concentration.
- It is often used in combination with other cinnamon-derived fragrance ingredients to create a complex scent.
Common questions
What is Cinnamyl Formate in beauty products?
Cinnamyl Formate is a man-made chemical that smells like cinnamon and balsam. It's added to perfumes, lotions, and other scented products to give them a warm, sweet fragrance. Because it's a known fragrance allergen, people with sensitive skin or allergies may want to check for it on the label.
What does Cinnamyl Formate do in a beauty product?
In a cosmetic product, Cinnamyl Formate acts solely as a fragrance ingredient. It evaporates from the skin, releasing a sweet, cinnamon-like scent that enhances the sensory experience of the product. It has no known skin-beneficial properties beyond scent.
Is Cinnamyl Formate safe for most people?
Cinnamyl Formate is considered safe for use in cosmetics at typical concentrations, but it is a known skin sensitizer. People with fragrance allergies or sensitive skin should use caution and check product labels.
Who should be careful with Cinnamyl Formate?
Individuals with sensitive skin, eczema, or a known allergy to fragrance or cinnamon derivatives
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.