Butylphenyl Methylpropional — Allergy Risk & Safety Profile
INCI: BUTYLPHENYL METHYLPROPIONAL
Also known as: Lilial
Key Facts
- CAS Number
- 80-54-6
- Category
- fragrance
- Risk Level
- high
- Common Allergen
- Yes
- EU Status
- Restricted
- Max Concentration
- Banned in EU (March 2022)
- Found In
- perfume, soap
Is Butylphenyl Methylpropional safe in cosmetics?
Butylphenyl Methylpropional is rated high risk in cosmetic products. It is a known allergen that can cause contact dermatitis in sensitized individuals. Banned in EU since 2022. Still found in some non-EU products. This ingredient is restricted under EU cosmetic regulations. Safer alternatives include Fragrance-free products, Essential oil-free formulations. Commonly found in perfume, soap.
What is Butylphenyl Methylpropional?
Lilial. Banned in EU since March 2022 due to reproductive toxicity classification.
Allergy & Safety Information
Butylphenyl Methylpropional is classified as a high-risk ingredient. It is a known cause of allergic contact dermatitis. It is restricted or regulated in the EU. Individuals with sensitive skin or a history of contact allergies should avoid products containing this ingredient. A patch test is recommended before first use of any product containing Butylphenyl Methylpropional.
This ingredient is classified as high risk from an allergenicity perspective. It is a recognised cause of allergic contact dermatitis with a relatively high sensitisation rate in patch-tested populations. People with a history of skin reactions to cosmetics, or with conditions such as eczema or sensitive skin, should exercise particular caution.
About Fragrance Component Ingredients
Fragrance ingredients are added to cosmetics for scent or to mask the odour of raw materials. The EU requires 26 specific fragrance allergens to be listed individually on labels when present above threshold concentrations. Fragrance (listed as "parfum") is the single most common cause of cosmetic contact dermatitis worldwide.
Relevance for Butylphenyl Methylpropional: Even products labelled "unscented" may contain masking fragrances. True fragrance-free products list no perfuming ingredients at all. If you are fragrance-sensitive, check for "parfum," "fragrance," and all 26 EU-listed fragrance allergens on any product label.
How to Identify Butylphenyl Methylpropional in Products
Cosmetic ingredients are listed by their INCI (International Nomenclature of Cosmetic Ingredients) name in descending order of concentration. To check whether a product contains Butylphenyl Methylpropional, scan the ingredient list for its INCI name exactly as it appears above. Ingredients present at 1% or less may appear in any order after the 1% threshold.
Product types to prioritise checking: Perfume, Soap. These product categories are the most common sources of Butylphenyl Methylpropional exposure based on formulation data.
Not sure if your products contain Butylphenyl Methylpropional? Paste the ingredient list into the free ingredient checker to scan for Butylphenyl Methylpropional and other allergens automatically.
Safer Alternatives
These ingredients serve a similar function with lower allergy risk:
Frequently Asked Questions
Is Butylphenyl Methylpropional safe for sensitive skin?
Butylphenyl Methylpropional is a known allergen and is generally not recommended for sensitive skin. Consider patch testing before use.
What products contain Butylphenyl Methylpropional?
Butylphenyl Methylpropional is commonly found in perfume, soap.
What does Butylphenyl Methylpropional do in cosmetics?
Butylphenyl Methylpropional functions as a fragrance in formulations.
Related Guides
Top 10 Cosmetic Allergens
Is Butylphenyl Methylpropional on the list? See the full clinical ranking.
Fragrance-Free Skincare Guide
Why fragrance is the #1 cause of cosmetic contact dermatitis.
How to Read Ingredient Labels
Decode INCI names and find hidden allergens in your products.
Find Your Skin Allergy Trigger
Step-by-step elimination method to identify your trigger.
Contact Dermatitis Guide
Symptoms, causes, patch testing, and treatment options.
Is Butylphenyl Methylpropional causing YOUR skin reactions?
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