Synonyms for Imidazolidinyl Urea
Euxyl K 200 Abiol
Imidazolidinyl urea is the second most common preservative used in cosmetic products (Marks et al., 2002; Sasseville, 2004). Imidazolidinyl urea affected 2.9% of patch test patients in 2005–2006 (Zug et al., 2009). This preservative is active against bacteria, including Pseudomonas aeruginosa (Maier et al., 2009). Imidazolidinyl releases 1/8 of the amount of formaldehyde that quaternium-15 releases (Rietschel & Fowler, 2008). Therefore, it is safer for patients with formaldehyde sensitivity. It is also nontoxic and nonirritating to the skin (Rietschel & Fowler, 2008). Cross reaction to diazolidinyl urea is possible (Marks et al., 2002). Imidazolidinyl urea is often combined with parabens to preserve products.
Sources of imidazolidinyl urea (Maier et al., 2009; Marks et al., 2002).
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Cite this: Allergic Contact Dermatitis: Topical Preservatives, Part I - Medscape - Mar 01, 2010.