Diazolidinyl Urea
DIAZOLIDINYL UREA
Data confidence:High
Function
Humectant
EWG Safety Score
7/10High concern
About this ingredient
Diazolidinyl urea is a formaldehyde-releasing preservative that prevents microbial and fungal contamination in cosmetic and personal care products by slowly releasing formaldehyde into the formula. It extends product shelf life and maintains stability over time, making it effective for preventing spoilage in diverse formulations.