Ingredient review
Cresylacetaldehyde Dimethyl Acetal
INCI: CRESYLACETALDEHYDE DIMETHYL ACETAL
A synthetic fragrance compound that adds floral and fruity notes but may cause skin sensitivity in some people.
In plain English
Cresylacetaldehyde Dimethyl Acetal is a man-made chemical used to give cosmetics a pleasant floral or fruity scent. It is not a moisturizer or active ingredient—its only job is to make the product smell nice. Because it is a fragrance ingredient, it can sometimes irritate sensitive skin or trigger allergic reactions, especially if you have a history of fragrance sensitivity.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is useful, but some claims depend heavily on the formula.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Cresylacetaldehyde Dimethyl Acetal 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 Cresylacetaldehyde Dimethyl Acetal.
- 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
moderateThere is useful support, but formula details and claim strength still matter.
What it is
A synthetic aromatic compound derived from cresol and acetaldehyde, used exclusively as a fragrance ingredient in cosmetics and personal care products.
How it works
It evaporates from the skin after application, releasing a floral-fruity scent that masks the base odor of other ingredients. It does not provide any skincare benefit beyond fragrance.
Pros
Pleasant scent
Provides a clean, floral-fruity fragrance that many people find appealing in skincare and perfumes.
Low comedogenic risk
Unlikely to clog pores, making it suitable for most skin types when used at low concentrations.
Cons and cautions
Potential irritant
Can cause redness, itching, or stinging in people with sensitive skin or fragrance allergies.
No skincare benefit
Offers no moisturizing, anti-aging, or protective effects—it only adds scent.
Best for
- People who enjoy scented skincare and have no history of fragrance allergy
- Those looking for a specific floral note in their products
Use caution if
- Individuals with sensitive or reactive skin
- Anyone with a known fragrance allergy or contact dermatitis
Usage tips
Safety summary
Generally safe for most people at low concentrations, but poses a moderate risk of skin irritation and allergic reactions for sensitive individuals. Regulatory bodies require labeling as a potential allergen in some regions.
Research notes
Limited peer-reviewed research specifically on this compound, but it is structurally related to known fragrance allergens. Safety assessments rely on general fragrance ingredient guidelines from IFRA and RIFM.
Common label clues
- Typical concentration
- Typically used at very low levels, often below 1% in finished products
- Regulatory status
- Approved for use in cosmetics in the US and EU, but must be listed as a fragrance allergen in the EU if present above 0.01% in leave-on products or 0.001% in rinse-off products.
- Common uses
- Fragranced skincare, Perfumes, Body lotions, Cleansers
- Environmental note
- As a synthetic compound, its environmental persistence is not well-documented, but fragrance ingredients in general can accumulate in waterways.
Good to know
- This ingredient is often listed simply as '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 separately if present above certain thresholds.
Common questions
What is Cresylacetaldehyde Dimethyl Acetal in beauty products?
Cresylacetaldehyde Dimethyl Acetal is a man-made chemical used to give cosmetics a pleasant floral or fruity scent. It is not a moisturizer or active ingredient—its only job is to make the product smell nice. Because it is a fragrance ingredient, it can sometimes irritate sensitive skin or trigger allergic reactions, especially if you have a history of fragrance sensitivity.
What does Cresylacetaldehyde Dimethyl Acetal do in a beauty product?
It evaporates from the skin after application, releasing a floral-fruity scent that masks the base odor of other ingredients. It does not provide any skincare benefit beyond fragrance.
Is Cresylacetaldehyde Dimethyl Acetal safe for most people?
Generally safe for most people at low concentrations, but poses a moderate risk of skin irritation and allergic reactions for sensitive individuals. Regulatory bodies require labeling as a potential allergen in some regions.
Who should be careful with Cresylacetaldehyde Dimethyl Acetal?
Individuals with sensitive or reactive 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.