Ingredient review
Cis-3-Hexenyl Phenylacetate
INCI: CIS-3-HEXENYL PHENYLACETATE
A synthetic fragrance ingredient that provides a pleasant green-floral scent; generally safe at low concentrations but may cause sensitivity in some individuals.
In plain English
Cis-3-Hexenyl Phenylacetate is a man-made compound used to give skincare and beauty products a sweet, green, floral scent, similar to the smell of fresh leaves or green apples. It is added in tiny amounts to make products smell nice, but it doesn't provide any skin benefits like moisturizing or anti-aging. If you have sensitive skin or are prone to fragrance allergies, you might want to avoid products with this ingredient.
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
Cis-3-Hexenyl 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 Cis-3-Hexenyl 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
A synthetic ester formed from cis-3-hexenol (a green leaf alcohol) and phenylacetic acid. It is used exclusively as a fragrance ingredient in cosmetics and personal care products.
How it works
It works by evaporating from the skin or hair, releasing its scent molecules into the air. It does not interact with the skin's biology or provide any functional benefit beyond fragrance.
Pros
Pleasant scent
Adds a fresh, green-floral aroma that many find appealing, improving the overall user experience.
Low irritation potential
At typical use levels, it has a low risk of causing irritation for most people, though patch testing is still wise.
Cons and cautions
No skin benefit
This ingredient only provides fragrance; it does not moisturize, protect, or improve skin health in any way.
Potential allergen
Like many fragrance ingredients, it can cause allergic reactions or contact dermatitis in sensitive individuals, especially with repeated use.
Best for
- People who enjoy scented skincare products
- Those without known fragrance allergies
Use caution if
- Individuals with sensitive skin or a history of fragrance allergies
- Anyone following a fragrance-free skincare routine
Usage tips
Safety summary
Cis-3-Hexenyl Phenylacetate is considered safe for use in cosmetics at typical concentrations. However, like all fragrance ingredients, it has the potential to cause allergic reactions in sensitive individuals. Regulatory bodies such as IFRA set usage limits to minimize risk.
Research notes
Research on this specific ingredient is limited, but it belongs to a class of fragrance esters that are generally well-tolerated. Studies on fragrance allergy indicate that individual sensitivity varies, and patch testing is recommended for those with known allergies.
Common label clues
- Typical concentration
- Typically used at very low levels (under 1%) in finished products
- Regulatory status
- Approved for use as a fragrance ingredient in cosmetics by the International Fragrance Association (IFRA) and the U.S. Food and Drug Administration (FDA), subject to safety guidelines.
- Common uses
- Fragranced skincare, Perfumes, Body lotions, Hair products
- Environmental note
- As a synthetic compound, it is produced through chemical synthesis and may not be biodegradable in all environments, though its low concentration in products limits environmental impact.
Good to know
- Cis-3-Hexenyl Phenylacetate is often listed simply as 'fragrance' or 'parfum' on ingredient labels, so it may not appear by name.
- This ingredient is not known to be phototoxic or comedogenic, making it relatively safe for most skin types in small amounts.
Common questions
What is Cis-3-Hexenyl Phenylacetate in beauty products?
Cis-3-Hexenyl Phenylacetate is a man-made compound used to give skincare and beauty products a sweet, green, floral scent, similar to the smell of fresh leaves or green apples. It is added in tiny amounts to make products smell nice, but it doesn't provide any skin benefits like moisturizing or anti-aging. If you have sensitive skin or are prone to fragrance allergies, you might want to avoid products with this ingredient.
What does Cis-3-Hexenyl Phenylacetate do in a beauty product?
It works by evaporating from the skin or hair, releasing its scent molecules into the air. It does not interact with the skin's biology or provide any functional benefit beyond fragrance.
Is Cis-3-Hexenyl Phenylacetate safe for most people?
Cis-3-Hexenyl Phenylacetate is considered safe for use in cosmetics at typical concentrations. However, like all fragrance ingredients, it has the potential to cause allergic reactions in sensitive individuals. Regulatory bodies such as IFRA set usage limits to minimize risk.
Who should be careful with Cis-3-Hexenyl Phenylacetate?
Individuals with sensitive skin or a history of fragrance allergies Anyone following a fragrance-free skincare routine
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.