Ingredient review

Dimethyl Cyclohexene Carbaldehyde

INCI: DIMETHYL-3-CYCLOHEXENE-1-CARBALDEHYDE

A synthetic fragrance component that provides a pleasant scent but may cause irritation in sensitive individuals.

beautyskincarefragrance

In plain English

This is a man-made chemical added to skincare and beauty products to give them a fresh, green, or floral smell. It doesn't do anything for your skin's health—it's purely for scent. Because it's a fragrance ingredient, it can sometimes cause irritation or allergic reactions, especially if you have sensitive skin.

Quick decision guide

Useful, but context matters

Dimethyl Cyclohexene Carbaldehyde 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 Cyclohexene Carbaldehyde.
  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 aldehyde family, used specifically as a fragrance ingredient in cosmetics and personal care products.

How it works

It evaporates from the skin's surface, releasing molecules that interact with olfactory receptors in the nose to create a perception of a fresh, green, or floral scent. It has no active skincare function.

Pros

Pleasant scent

Adds a fresh, green, or floral note that can make your skincare routine more enjoyable.

Widely used

Common in many products, so it's easy to find and well-tolerated by most people without sensitivities.

Cons and cautions

Irritation risk

Can cause redness, itching, or stinging on sensitive or compromised skin, especially in leave-on products.

No skincare benefit

Provides only fragrance—no moisturizing, anti-aging, or protective effects for the skin.

Best for

  • People who enjoy scented skincare and have no history of fragrance allergies
  • Those looking for a fresh, green scent in their products

Use caution if

  • Individuals with sensitive, reactive, or eczema-prone skin
  • Anyone with a known fragrance allergy or contact dermatitis

Usage tips

If you have sensitive skin, do a patch test on your inner arm before using a product containing this ingredient.
Consider fragrance-free alternatives if you notice any irritation or discomfort after use.
Use products with this ingredient in rinse-off formats (like cleansers) to reduce skin contact time.

Safety summary

Generally safe for most people when used as intended in cosmetics. However, it is a known potential allergen and can cause skin irritation or allergic reactions in sensitive individuals. Regulatory bodies require labeling at certain concentrations to help consumers avoid it if needed.

Research notes

Research indicates that dimethyl cyclohexene carbaldehyde can act as a skin sensitizer in some individuals. It is included in fragrance allergen lists by the EU Scientific Committee on Consumer Safety (SCCS) and is monitored for safe use levels.

Common label clues

Typical concentration
Typically less than 1% in 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 potential allergenicity.
Common uses
Fragranced skincare, Perfumes, Body lotions, Cleansers
Environmental note
As a synthetic compound, it may persist in the environment after washing off. However, it is used in very small amounts, so its overall impact is considered low.

Good to know

  • This ingredient is often listed under 'fragrance' or 'parfum' on labels, so it may not appear by name.
  • It is regulated as a fragrance allergen in the EU and must be listed on the label if present above certain levels.

Common questions

What is Dimethyl Cyclohexene Carbaldehyde in beauty products?

This is a man-made chemical added to skincare and beauty products to give them a fresh, green, or floral smell. It doesn't do anything for your skin's health—it's purely for scent. Because it's a fragrance ingredient, it can sometimes cause irritation or allergic reactions, especially if you have sensitive skin.

What does Dimethyl Cyclohexene Carbaldehyde do in a beauty product?

It evaporates from the skin's surface, releasing molecules that interact with olfactory receptors in the nose to create a perception of a fresh, green, or floral scent. It has no active skincare function.

Is Dimethyl Cyclohexene Carbaldehyde safe for most people?

Generally safe for most people when used as intended in cosmetics. However, it is a known potential allergen and can cause skin irritation or allergic reactions in sensitive individuals. Regulatory bodies require labeling at certain concentrations to help consumers avoid it if needed.

Who should be careful with Dimethyl Cyclohexene Carbaldehyde?

Individuals with sensitive, reactive, or eczema-prone skin Anyone with a known fragrance allergy or contact dermatitis

Research sources

EU CosIng DatabaseOpenPubMed - Fragrance Allergy ReviewOpenInternational Fragrance Association (IFRA) StandardsOpen

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.