Ingredient review
Trans-Rose Ketone-5
INCI: Trans-Rose Ketone-5
Trans-Rose Ketone-5 is a synthetic fragrance ingredient that adds a rosy scent to products, but it may cause irritation in sensitive individuals.
In plain English
Trans-Rose Ketone-5 is a man-made chemical used to give cosmetics a pleasant rose-like smell. It is not a natural rose extract but a lab-created version of a compound found in rose oil. Because it is a fragrance ingredient, it can sometimes cause skin reactions, especially if you have sensitive skin or a history of fragrance allergies.
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
Trans-Rose Ketone-5 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 Trans-Rose Ketone-5.
- 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
Trans-Rose Ketone-5 is a synthetic aromatic compound that mimics the scent of roses. It belongs to a class of chemicals called ketones and is used primarily as a fragrance ingredient in cosmetics and personal care products.
How it works
In a cosmetic product, Trans-Rose Ketone-5 works by releasing a rose-like aroma that enhances the sensory experience of using the product. It does not provide any skincare benefits like moisturizing or anti-aging; its sole purpose is to add fragrance.
Pros
Consistent rose scent
Provides a reliable, long-lasting rose fragrance that doesn't vary like natural extracts might.
Low cost
Synthetic production makes it more affordable than natural rose oil, keeping product prices lower.
Cons and cautions
Potential irritant
As a fragrance ingredient, it can cause redness, itching, or stinging in people with sensitive skin or fragrance allergies.
No skincare benefit
It adds only scent, not hydration, antioxidants, or any other functional skincare property.
Best for
- People who enjoy rose-scented products and have no history of fragrance allergies
- Those looking for a consistent, stable rose fragrance in their cosmetics
Use caution if
- Individuals with sensitive skin or known fragrance allergies
- Anyone who prefers fragrance-free skincare to minimize irritation risk
Usage tips
Safety summary
Trans-Rose Ketone-5 is generally safe for most people when used at low concentrations in cosmetics. However, it can cause skin irritation or allergic reactions in individuals with fragrance sensitivities. Regulatory bodies require it to be labeled as a potential allergen in some regions.
Research notes
Research indicates that Trans-Rose Ketone-5 is a known contact allergen, with studies showing it can cause positive patch test reactions in people with fragrance allergies. Its use is regulated in the EU under cosmetic allergen labeling laws.
Common label clues
- Typical concentration
- Typically used at very low levels, often below 1%
- Regulatory status
- Approved for use in cosmetics in the EU and US, but must be listed on the label if present above certain thresholds in the EU due to allergen labeling requirements.
- Common uses
- Perfumes, Fragranced skincare, Body lotions, Hair products
- Environmental note
- As a synthetic compound, its environmental impact is generally lower than harvesting natural rose oil, but it is not biodegradable in all conditions.
Good to know
- Trans-Rose Ketone-5 is often listed simply as 'fragrance' or 'parfum' on ingredient labels, so it may not always appear by name.
- It is considered a contact allergen by some dermatological organizations, meaning it can cause allergic reactions in susceptible people.
Common questions
What is Trans-Rose Ketone-5 in beauty products?
Trans-Rose Ketone-5 is a man-made chemical used to give cosmetics a pleasant rose-like smell. It is not a natural rose extract but a lab-created version of a compound found in rose oil. Because it is a fragrance ingredient, it can sometimes cause skin reactions, especially if you have sensitive skin or a history of fragrance allergies.
What does Trans-Rose Ketone-5 do in a beauty product?
In a cosmetic product, Trans-Rose Ketone-5 works by releasing a rose-like aroma that enhances the sensory experience of using the product. It does not provide any skincare benefits like moisturizing or anti-aging; its sole purpose is to add fragrance.
Is Trans-Rose Ketone-5 safe for most people?
Trans-Rose Ketone-5 is generally safe for most people when used at low concentrations in cosmetics. However, it can cause skin irritation or allergic reactions in individuals with fragrance sensitivities. Regulatory bodies require it to be labeled as a potential allergen in some regions.
Who should be careful with Trans-Rose Ketone-5?
Individuals with sensitive skin or known fragrance allergies Anyone who prefers fragrance-free skincare to minimize irritation risk
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.