Ingredient review
Cis-3-Hexenyl Lactate
INCI: CIS-3-HEXENYL LACTATE
A synthetic fragrance ingredient that provides a fresh, leafy scent and mild skin conditioning, but offers no significant skincare benefits on its own.
In plain English
Cis-3-Hexenyl Lactate is a man-made ingredient used mainly to give products a pleasant, green, grassy smell — think of the scent of freshly cut leaves. It also has a very mild ability to soften or condition the skin, but its main job is making a product smell nice. Because it's used in tiny amounts, it rarely causes irritation, but it doesn't actively improve your skin either.
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 Lactate 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 Lactate.
- 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-Hexenyl Lactate is a synthetic ester created by combining cis-3-hexenol (a compound that smells like fresh grass) with lactic acid. It is a clear liquid at room temperature and is valued in cosmetics for its fresh, green, leafy fragrance.
How it works
In a cosmetic product, Cis-3-Hexenyl Lactate primarily functions as a fragrance ingredient, imparting a natural, green scent. It may also act as a very mild skin conditioning agent, meaning it can help keep the skin's surface feeling slightly softer, but this effect is secondary and minimal at the low concentrations used for fragrance.
Pros
Pleasant Natural Scent
Provides a fresh, leafy green fragrance that many find appealing and natural, enhancing the sensory experience of a product.
Low Irritation Potential
Used in very small amounts, it has a low risk of causing skin irritation for most people, making it a relatively gentle fragrance option.
Cons and cautions
No Active Skincare Benefit
Its primary role is fragrance; it does not provide meaningful hydration, anti-aging, or other active skincare benefits.
Potential Allergen
As a fragrance ingredient, it can still trigger allergic reactions or sensitivities in some individuals, especially those with a history of fragrance allergies.
Best for
- People who enjoy fresh, green-scented skincare products.
- Those with non-sensitive skin looking for a pleasant fragrance experience.
Use caution if
- Individuals with known fragrance allergies or very sensitive skin should patch test first.
Usage tips
Safety summary
Cis-3-Hexenyl Lactate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and sensitization potential, but like all fragrance ingredients, it can cause allergic reactions in susceptible individuals. Regulatory bodies have reviewed it and found it acceptable for use.
Research notes
Research on Cis-3-Hexenyl Lactate is limited, focusing mainly on its sensory properties and safety profile. It is not associated with significant toxicity or health risks when used as intended in cosmetics. The safety panel of the International Fragrance Association (IFRA) has established standards for its use.
Common label clues
- Typical concentration
- Typically used at very low levels (under 1%) due to its potent scent.
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. It is subject to fragrance allergen labeling requirements in the EU when present above certain levels.
- Common uses
- Fragranced lotions, Cleansers, Perfumes
- Environmental note
- As a synthetic ingredient, its environmental impact is primarily tied to the manufacturing process. It is not known to be bioaccumulative.
Good to know
- Cis-3-Hexenyl Lactate is often used in 'green' or 'herbal' fragrance blends to create a natural, outdoor feel.
- It is a synthetic version of a compound found naturally in green leaves and some fruits.
Common questions
What is Cis-3-Hexenyl Lactate in beauty products?
Cis-3-Hexenyl Lactate is a man-made ingredient used mainly to give products a pleasant, green, grassy smell — think of the scent of freshly cut leaves. It also has a very mild ability to soften or condition the skin, but its main job is making a product smell nice. Because it's used in tiny amounts, it rarely causes irritation, but it doesn't actively improve your skin either.
What does Cis-3-Hexenyl Lactate do in a beauty product?
In a cosmetic product, Cis-3-Hexenyl Lactate primarily functions as a fragrance ingredient, imparting a natural, green scent. It may also act as a very mild skin conditioning agent, meaning it can help keep the skin's surface feeling slightly softer, but this effect is secondary and minimal at the low concentrations used for fragrance.
Is Cis-3-Hexenyl Lactate safe for most people?
Cis-3-Hexenyl Lactate is considered safe for use in cosmetics at typical concentrations. It has a low irritation and sensitization potential, but like all fragrance ingredients, it can cause allergic reactions in susceptible individuals. Regulatory bodies have reviewed it and found it acceptable for use.
Who should be careful with Cis-3-Hexenyl Lactate?
Individuals with known fragrance allergies or very sensitive skin should patch test first.
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.