Ingredient review
Isopropyl Cyclohexadiene Ethanol
INCI: ISOPROPYL-CYCLOHEXADIENE-ETHANOL
A synthetic fragrance ingredient that adds scent but offers no skincare benefits and may cause irritation for sensitive skin.
In plain English
This is a man-made chemical used to give products a pleasant smell, often described as floral or green. It doesn't moisturize, treat, or protect your skin—it's purely for fragrance. Because it's a fragrance ingredient, it can sometimes cause irritation, especially for people with sensitive skin or allergies.
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
Isopropyl Cyclohexadiene Ethanol 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 Isopropyl Cyclohexadiene Ethanol.
- 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
Isopropyl Cyclohexadiene Ethanol is a synthetic organic compound used as a fragrance ingredient in cosmetics. It is not a naturally derived oil or extract but is created in a lab to produce a specific scent profile.
How it works
In a cosmetic product, this ingredient simply evaporates from the skin, releasing its scent molecules into the air. It does not interact with the skin's barrier or provide any functional benefit beyond fragrance.
Pros
Pleasant scent
Adds a light floral or green fragrance that can make the product more enjoyable to use.
Low comedogenic risk
Unlikely to clog pores, making it safer for acne-prone skin compared to some heavier oils.
Cons and cautions
Potential irritant
As a synthetic fragrance, it can cause redness, itching, or stinging, especially on sensitive or compromised skin.
No skincare benefit
Provides only scent—no moisturizing, anti-aging, or protective properties for the skin.
Best for
- People who enjoy scented products and have no history of fragrance sensitivity
- Those looking for a light, pleasant scent in their routine
Use caution if
- Individuals with sensitive, reactive, or eczema-prone skin
- Anyone with a known fragrance allergy or contact dermatitis
Usage tips
Safety summary
Isopropyl Cyclohexadiene Ethanol is considered safe for most people when used in low concentrations in rinse-off or leave-on products. However, it can be a skin irritant or allergen for sensitive individuals. The Cosmetic Ingredient Review (CIR) has not published a specific safety assessment for this exact compound, but it falls under the general safety umbrella of fragrance ingredients.
Research notes
There is limited peer-reviewed research specifically on Isopropyl Cyclohexadiene Ethanol. Most safety data comes from general fragrance ingredient assessments and industry safety databases. It is not a well-studied ingredient in dermatology literature.
Common label clues
- Typical concentration
- Typically used at very low levels (less than 1%) due to its strong scent and potential for irritation.
- Regulatory status
- Approved for use in cosmetics in the US and EU, but must be listed as a fragrance ingredient. No specific concentration limits are set, but it is subject to general fragrance safety assessments.
- Common uses
- Fragranced skincare, Perfumes, Body lotions, Hair products
- Environmental note
- As a synthetic compound, its environmental persistence and biodegradability are not well-documented. It is not known to be a major environmental concern at typical usage levels.
Good to know
- This ingredient is often listed simply as 'fragrance' or 'parfum' on labels, so it may not appear by its full chemical name.
- It is not related to vitamin E or any beneficial alcohol—it's purely a scent chemical.
Common questions
What is Isopropyl Cyclohexadiene Ethanol in beauty products?
This is a man-made chemical used to give products a pleasant smell, often described as floral or green. It doesn't moisturize, treat, or protect your skin—it's purely for fragrance. Because it's a fragrance ingredient, it can sometimes cause irritation, especially for people with sensitive skin or allergies.
What does Isopropyl Cyclohexadiene Ethanol do in a beauty product?
In a cosmetic product, this ingredient simply evaporates from the skin, releasing its scent molecules into the air. It does not interact with the skin's barrier or provide any functional benefit beyond fragrance.
Is Isopropyl Cyclohexadiene Ethanol safe for most people?
Isopropyl Cyclohexadiene Ethanol is considered safe for most people when used in low concentrations in rinse-off or leave-on products. However, it can be a skin irritant or allergen for sensitive individuals. The Cosmetic Ingredient Review (CIR) has not published a specific safety assessment for this exact compound, but it falls under the general safety umbrella of fragrance ingredients.
Who should be careful with Isopropyl Cyclohexadiene Ethanol?
Individuals with sensitive, reactive, or eczema-prone skin Anyone with a known fragrance allergy or contact dermatitis
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.