Ingredient review

Dimethyl Cyclohexenecarbonitrile

INCI: 2,4-DIMETHYL CYCLOHEXENECARBONITRILE

A synthetic scent ingredient that adds a fresh, citrus note but may cause irritation in sensitive individuals.

beautyskincarefragrance

In plain English

This is a man-made chemical that gives products a fresh, citrusy smell. It's used in tiny amounts to create a pleasant fragrance. While generally safe for most people, it can be irritating for those with sensitive skin or fragrance allergies.

Quick decision guide

Useful, but context matters

Dimethyl Cyclohexenecarbonitrile 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.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Dimethyl Cyclohexenecarbonitrile.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. 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

moderate

Can bother some users, especially with frequent use, damaged skin, or strong companion ingredients.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

A synthetic organic compound from the nitrile family, specifically created to mimic a fresh, citrus-like scent. It is not derived from plants but is manufactured in a lab.

How it works

It works by interacting with olfactory receptors in the nose, creating the perception of a fresh, citrusy aroma. In a cosmetic product, it simply provides fragrance and has no active skincare function.

Pros

Pleasant scent

Adds a fresh, citrusy aroma that can make your skincare routine feel more enjoyable and uplifting.

Low concentration needed

Only a tiny amount is required to achieve the desired fragrance, which helps keep the overall formula gentle.

Cons and cautions

Potential irritant

For people with sensitive skin or fragrance allergies, this ingredient can cause redness, itching, or stinging.

Hidden in 'fragrance'

It may not be listed separately on the label, making it difficult to identify and avoid if you have a sensitivity.

Best for

  • People who enjoy scented skincare and have no history of fragrance sensitivity
  • Those looking for a fresh, uplifting scent in their routine

Use caution if

  • Individuals with known fragrance allergies or very sensitive, reactive skin
  • Anyone following a fragrance-free skincare routine

Usage tips

If you have sensitive skin, do a patch test before using a product containing this ingredient.
Look for products labeled 'fragrance-free' if you want to avoid synthetic scents like this one.

Safety summary

Generally considered safe for most people at the low concentrations used in cosmetics. However, it can be a skin irritant for sensitive individuals and is a potential allergen. The Cosmetic Ingredient Review (CIR) panel has not specifically reviewed this ingredient, but similar fragrance ingredients are considered safe when used as intended.

Research notes

Research on this specific compound is limited. It is a common fragrance ingredient, and its safety is generally inferred from broader studies on fragrance allergens and skin sensitization. The EU Scientific Committee on Consumer Safety (SCCS) has evaluated similar nitrile fragrance ingredients and found them safe at low concentrations.

Common label clues

Typical concentration
Typically used at very low levels, often less than 1%
Regulatory status
Approved for use in cosmetics in the EU and US, but must be listed on the label if it is a known allergen under EU regulations.
Common uses
Fragranced skincare, Body lotions, Cleansers, Perfumes
Environmental note
As a synthetic compound, its environmental impact depends on manufacturing and disposal practices. It is not biodegradable in all conditions.

Good to know

  • This ingredient is often used in combination with other fragrance ingredients to create a complex scent profile.
  • It is regulated as a fragrance ingredient and must be listed on the label if it is a known allergen in some regions.

Common questions

What is Dimethyl Cyclohexenecarbonitrile in beauty products?

This is a man-made chemical that gives products a fresh, citrusy smell. It's used in tiny amounts to create a pleasant fragrance. While generally safe for most people, it can be irritating for those with sensitive skin or fragrance allergies.

What does Dimethyl Cyclohexenecarbonitrile do in a beauty product?

It works by interacting with olfactory receptors in the nose, creating the perception of a fresh, citrusy aroma. In a cosmetic product, it simply provides fragrance and has no active skincare function.

Is Dimethyl Cyclohexenecarbonitrile safe for most people?

Generally considered safe for most people at the low concentrations used in cosmetics. However, it can be a skin irritant for sensitive individuals and is a potential allergen. The Cosmetic Ingredient Review (CIR) panel has not specifically reviewed this ingredient, but similar fragrance ingredients are considered safe when used as intended.

Who should be careful with Dimethyl Cyclohexenecarbonitrile?

Individuals with known fragrance allergies or very sensitive, reactive skin Anyone following a fragrance-free skincare routine

Research sources

European Chemicals Agency (ECHA) - 2,4-Dimethyl-3-cyclohexene-1-carbonitrileOpenCosmetic Ingredient Review (CIR) - Fragrance Ingredients SafetyOpenPubMed - Fragrance allergens and skin sensitizationOpen

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.