Imidazolidinyl Urea
INCI: IMIDAZOLIDINYL UREA
Also known as: Germall 115
Key Facts
- CAS Number
- 39236-46-9
- Category
- preservative
- Risk Level
- high
- Common Allergen
- Yes
- Max Concentration
- 0.6%
- Found In
- moisturizer, eyeshadow, blush
Is Imidazolidinyl Urea safe in cosmetics?
Imidazolidinyl Urea is rated high risk in cosmetic products. It is a known allergen that can cause contact dermatitis in sensitized individuals. Releases formaldehyde. Second most common preservative allergen after MI/MCI. Safer alternatives include Phenoxyethanol, Sodium Benzoate, Potassium Sorbate. Commonly found in moisturizer, eyeshadow, blush.
What is Imidazolidinyl Urea?
Formaldehyde-releasing preservative.
Allergy & Safety Information
Imidazolidinyl Urea is classified as a high-risk ingredient. It is a known cause of allergic contact dermatitis. 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 Imidazolidinyl Urea.
Cross-Reactions
If you react to Imidazolidinyl Urea, you may also react to:
Safer Alternatives
These ingredients serve a similar function with lower allergy risk:
Frequently Asked Questions
Is Imidazolidinyl Urea safe for sensitive skin?
Imidazolidinyl Urea is a known allergen and is generally not recommended for sensitive skin. Consider patch testing before use.
What products contain Imidazolidinyl Urea?
Imidazolidinyl Urea is commonly found in moisturizer, eyeshadow, blush.
What does Imidazolidinyl Urea do in cosmetics?
Imidazolidinyl Urea functions as a preservative in formulations. Releases formaldehyde. Second most common preservative allergen after MI/MCI.
Related Guides
Top 10 Cosmetic Allergens
Is Imidazolidinyl Urea on the list? See the full clinical ranking.
Preservative Allergy Guide
Which preservatives cause the most reactions and what to use instead.
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 Imidazolidinyl Urea causing YOUR skin reactions?
SkinDetekt tracks your products and reactions to find your personal triggers. Download the app to find out.
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