Ingredient review
Cis-3-Heptenyl Acetate
INCI: CIS-3-HEPTENYL ACETATE
Cis-3-Heptenyl Acetate is a synthetic scent ingredient that adds a fresh, green note to products, but offers no skincare benefit and may cause sensitivity in those with fragrance allergies.
In plain English
Cis-3-Heptenyl Acetate is a man-made chemical that smells fresh and green, like cut grass or unripe fruit. It is added to skincare and beauty products purely for its pleasant scent. It does not moisturize, treat, or improve your skin in any way. For most people, it is safe at the tiny amounts used, but if you have very sensitive skin or a known fragrance allergy, it could cause irritation.
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-Heptenyl Acetate 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-Heptenyl Acetate.
- 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
Cis-3-Heptenyl Acetate is a synthetic ester compound used as a fragrance ingredient. It is not derived from plants but is created in a lab to mimic natural green, fruity scents.
How it works
In a cosmetic product, Cis-3-Heptenyl Acetate simply evaporates from the skin, 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, slightly fruity aroma that many people find appealing and uplifting.
Low irritation for most
At the very low concentrations used in cosmetics, it is generally non-irritating for the majority of users.
Cons and cautions
No skin benefit
This ingredient does not hydrate, soothe, or improve skin health—it is purely for fragrance.
Allergen potential
As a fragrance ingredient, it can trigger contact dermatitis or allergic reactions in sensitive individuals, especially with repeated use.
Best for
- People who enjoy a fresh, green scent in their skincare routine
- Those without a history of fragrance allergies
Use caution if
- Individuals with known fragrance allergies or very sensitive, reactive skin
Usage tips
Safety summary
Cis-3-Heptenyl Acetate is considered safe for use in cosmetics at the low concentrations typically employed. The main safety concern is its potential as a skin allergen for sensitive individuals, which is common to many fragrance ingredients. Regulatory bodies like the IFRA (International Fragrance Association) set usage limits to minimize risk.
Research notes
Research on Cis-3-Heptenyl Acetate focuses on its sensory properties and allergen potential. It is listed as a potential contact allergen by the EU Scientific Committee on Consumer Safety (SCCS), but no major health risks have been identified at cosmetic levels. Most evidence comes from fragrance safety assessments rather than independent skincare studies.
Common label clues
- Typical concentration
- Typically used at very low levels (less than 1%) in rinse-off and leave-on products
- Regulatory status
- Approved for use in cosmetics in the US and EU. In the EU, it must be listed on the label if present above 0.01% in leave-on products or 0.001% in rinse-off products due to allergen labeling requirements.
- Common uses
- Fragranced skincare, Perfumes, Body lotions, Cleansers
- Environmental note
- As a synthetic compound, its environmental persistence is low, but it is not biodegradable in all conditions. No significant environmental concerns are widely reported at typical usage levels.
Good to know
- Cis-3-Heptenyl Acetate is often listed simply as 'fragrance' or 'parfum' on ingredient labels, so you may not see it by name.
- This ingredient is regulated as a fragrance allergen in the EU and must be listed separately if present above certain levels.
Common questions
What is Cis-3-Heptenyl Acetate in beauty products?
Cis-3-Heptenyl Acetate is a man-made chemical that smells fresh and green, like cut grass or unripe fruit. It is added to skincare and beauty products purely for its pleasant scent. It does not moisturize, treat, or improve your skin in any way. For most people, it is safe at the tiny amounts used, but if you have very sensitive skin or a known fragrance allergy, it could cause irritation.
What does Cis-3-Heptenyl Acetate do in a beauty product?
In a cosmetic product, Cis-3-Heptenyl Acetate simply evaporates from the skin, 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-Heptenyl Acetate safe for most people?
Cis-3-Heptenyl Acetate is considered safe for use in cosmetics at the low concentrations typically employed. The main safety concern is its potential as a skin allergen for sensitive individuals, which is common to many fragrance ingredients. Regulatory bodies like the IFRA (International Fragrance Association) set usage limits to minimize risk.
Who should be careful with Cis-3-Heptenyl Acetate?
Individuals with known fragrance allergies or very 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.