Imidazolidinyl urea
Appearance
Imidazolidinyl urea (C11H16N8O8) is used as an antimicrobial preservative in cosmetics. It is chemically related to diazolidinyl urea which is used in the same way.
Safety
Some people have a contact allergy to imidazolidinyl urea causing dermatitis. Such people are often also allergic to diazolidinyl urea.
References
- Lehmann SV, Hoeck U, Breinholdt J, Olsen CE, Kreilgaard B. (2008). "Characterization and chemistry of imidazolidinyl urea and diazolidinyl urea". Contact Dermatitis. 2006 Jan;54(1):50-8. Retrieved 2008-01-16.
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