Ingredient review
Cinnamyl Phenylacetate
INCI: CINNAMYL PHENYLACETATE
Cinnamyl Phenylacetate is a synthetic fragrance ingredient that adds a sweet, floral scent to products, but may cause sensitivity in some individuals.
In plain English
Cinnamyl Phenylacetate is a man-made chemical that smells sweet and floral, like cinnamon and hyacinth. It's added to skincare and beauty products to make them smell nice. Because it's a fragrance ingredient, it doesn't provide any skin benefits like moisturizing or anti-aging. Some people with very sensitive skin might find it irritating, but for most it's safe at the low levels used in cosmetics.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Cinnamyl Phenylacetate is generally a lower-concern ingredient when the full formula suits your skin.
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 Phenylacetate.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
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 Phenylacetate is a synthetic ester created by combining cinnamyl alcohol and phenylacetic acid. It is used exclusively as a fragrance ingredient to impart a sweet, floral, balsamic scent reminiscent of hyacinth and cinnamon.
How it works
In a cosmetic product, Cinnamyl Phenylacetate acts solely as a fragrance component. It evaporates from the skin's surface, releasing its pleasant scent. It does not have any active skincare function such as moisturizing, exfoliating, or protecting the skin.
Pros
Pleasant scent
Adds a sweet, floral aroma that can make your skincare routine more enjoyable.
Low irritation for most
At typical low concentrations, it is well-tolerated by the majority of skin types.
Cons and cautions
No skin benefit
This ingredient only adds fragrance; it does not hydrate, soothe, or improve skin health.
Potential allergen
As a synthetic fragrance, it can cause allergic reactions or irritation in people with sensitive skin or fragrance allergies.
Best for
- People who enjoy scented skincare products
- Those without fragrance sensitivities
Use caution if
- Individuals with known fragrance allergies or sensitive, reactive skin
Usage tips
Safety summary
Cinnamyl Phenylacetate is considered safe for use in cosmetics at typical low concentrations. However, it is a recognized fragrance allergen and may cause skin sensitization in susceptible individuals. Regulatory bodies require labeling when used above certain thresholds.
Research notes
Research on Cinnamyl Phenylacetate is limited, but it is included in fragrance allergen lists by the EU Scientific Committee on Consumer Safety (SCCS). Studies on similar fragrance esters indicate low acute toxicity but potential for skin sensitization.
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. In the EU, it is required to be listed on the label as a potential allergen if present above 0.001% in leave-on products or 0.01% in rinse-off products.
- Common uses
- Fragranced skincare, Perfumes, Body lotions, Cleansers
- Environmental note
- As a synthetic compound, its environmental impact depends on manufacturing practices and biodegradability. Limited data is available on its ecological footprint.
Good to know
- Cinnamyl Phenylacetate is often listed under 'parfum' or 'fragrance' on ingredient labels rather than by its full name.
- It is regulated as a fragrance allergen in the EU and must be listed on the label if present above certain concentrations.
Common questions
What is Cinnamyl Phenylacetate in beauty products?
Cinnamyl Phenylacetate is a man-made chemical that smells sweet and floral, like cinnamon and hyacinth. It's added to skincare and beauty products to make them smell nice. Because it's a fragrance ingredient, it doesn't provide any skin benefits like moisturizing or anti-aging. Some people with very sensitive skin might find it irritating, but for most it's safe at the low levels used in cosmetics.
What does Cinnamyl Phenylacetate do in a beauty product?
In a cosmetic product, Cinnamyl Phenylacetate acts solely as a fragrance component. It evaporates from the skin's surface, releasing its pleasant scent. It does not have any active skincare function such as moisturizing, exfoliating, or protecting the skin.
Is Cinnamyl Phenylacetate safe for most people?
Cinnamyl Phenylacetate is considered safe for use in cosmetics at typical low concentrations. However, it is a recognized fragrance allergen and may cause skin sensitization in susceptible individuals. Regulatory bodies require labeling when used above certain thresholds.
Who should be careful with Cinnamyl Phenylacetate?
Individuals with known fragrance allergies or sensitive, reactive skin
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.