Diazolidinyl urea

Diazolidinyl urea is a preservative used in cosmetics and pharmaceuticals. It is an antimicrobial agent that causes cell lysis by inhibiting the respiratory synthesis of bacteria. Diazolidinyl urea has been shown to be effective against Gram-positive and Gram-negative bacteria, yeast, and mold. The analytical method for diazolidinyl urea is well established, with detection limits of 0.1 ppm. Diazolidinyl urea is stable under normal conditions, but can be degraded by heat or pH changes. This preservative also inhibits microbial growth by reducing the availability of p-hydroxybenzoic acid (pHBA) and formaldehyde as substrates for bacterial metabolism. Diazolidinyl urea also prevents the formation of biofilms on wet surfaces and exhibits some anti-inflammatory effects.