Ingredient review
Non-2-Enenitrile
INCI: NON-2-ENENITRILE
Non-2-Enenitrile is a synthetic fragrance ingredient that adds a fresh, green scent but offers no skincare benefits and may cause irritation in sensitive individuals.
In plain English
Non-2-Enenitrile is a man-made chemical used to give skincare products a fresh, green, or citrusy smell. It doesn't moisturize, exfoliate, or treat skin—it's purely for scent. Because it's a fragrance ingredient, it can sometimes cause irritation or allergic reactions, especially for people with sensitive skin.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- emerging
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Non-2-Enenitrile 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 Non-2-Enenitrile.
- 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
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
Non-2-Enenitrile is a synthetic nitrile compound (a type of organic molecule containing a carbon-nitrogen triple bond) that is used as a fragrance ingredient. It is not naturally derived and is produced in a lab to provide a specific scent profile.
How it works
In a cosmetic product, Non-2-Enenitrile works by evaporating from the skin and interacting with olfactory receptors in the nose, creating the perception of a fresh, green, or citrusy scent. It does not have any active skincare function like moisturizing or protecting the skin barrier.
Pros
Pleasant fresh scent
Non-2-Enenitrile provides a clean, green, or citrusy aroma that can make skincare feel more refreshing and enjoyable to use.
Low use concentration
It is effective at very low levels (often below 0.1%), meaning the actual amount on skin is tiny, which can reduce the risk of irritation for most people.
Cons and cautions
No skincare benefit
This ingredient adds only fragrance—it does not hydrate, soothe, protect, or improve skin health in any way.
Potential irritant
As a synthetic fragrance compound, it can cause contact dermatitis, redness, or stinging in people with sensitive or compromised skin barriers.
Best for
- People who enjoy fresh, green-scented skincare and do not have fragrance sensitivities
- Those using products where fragrance is a desired sensory attribute
Use caution if
- Individuals with sensitive, reactive, or eczema-prone skin who may experience irritation from synthetic fragrances
Usage tips
Safety summary
Non-2-Enenitrile is considered safe for use in cosmetics at low concentrations by industry standards, but it can be a skin irritant for sensitive individuals. There is no evidence of systemic toxicity from topical use, but long-term safety data is limited.
Research notes
Research on Non-2-Enenitrile is sparse. Most available data comes from fragrance industry safety assessments rather than independent peer-reviewed studies. It is not a well-studied ingredient in dermatology or toxicology literature.
Common label clues
- Typical concentration
- Very low, typically less than 0.1% in leave-on products
- Regulatory status
- Approved for use as a fragrance ingredient in cosmetics in the US (FDA) and EU (CosIng), but not specifically restricted. It is not listed as a known allergen under EU Cosmetics Regulation.
- Common uses
- Fragranced skincare, Perfumes, Body care
- Environmental note
- As a synthetic nitrile, its environmental persistence and biodegradability are not well-documented. Limited data is available on its ecological impact.
Good to know
- Non-2-Enenitrile is not a common or widely recognized ingredient; it appears mostly in niche or high-end fragranced products.
- Fragrance allergens are regulated in many regions, but Non-2-Enenitrile is not currently listed as a mandatory allergen in the EU or US.
Common questions
What is Non-2-Enenitrile in beauty products?
Non-2-Enenitrile is a man-made chemical used to give skincare products a fresh, green, or citrusy smell. It doesn't moisturize, exfoliate, or treat skin—it's purely for scent. Because it's a fragrance ingredient, it can sometimes cause irritation or allergic reactions, especially for people with sensitive skin.
What does Non-2-Enenitrile do in a beauty product?
In a cosmetic product, Non-2-Enenitrile works by evaporating from the skin and interacting with olfactory receptors in the nose, creating the perception of a fresh, green, or citrusy scent. It does not have any active skincare function like moisturizing or protecting the skin barrier.
Is Non-2-Enenitrile safe for most people?
Non-2-Enenitrile is considered safe for use in cosmetics at low concentrations by industry standards, but it can be a skin irritant for sensitive individuals. There is no evidence of systemic toxicity from topical use, but long-term safety data is limited.
Who should be careful with Non-2-Enenitrile?
Individuals with sensitive, reactive, or eczema-prone skin who may experience irritation from synthetic fragrances
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.