Diazolidinyl urea
![Skeletal formula of diazolidinyl urea](/Images/godic/202501/08/Diazolidinyl_urea_erroneous_formula0738.png")
![Ball-and-stick model of the diazolidinyl urea molecule](/Images/godic/202501/08/Diazolidinyl_urea_3D_ball0738.png")
![](/Images/godic/202501/08/Diazolidinyl_urea_correct_formula0738.png")
![Patch test](/Images/godic/202501/08/Epikutanni-test0738.jpg")
Diazolidinyl urea is an antimicrobial preservative used in cosmetics. It is chemically related to imidazolidinyl urea which is used in the same way. Diazolidinyl urea acts as a formaldehyde releaser.
It is used in many cosmetics, skin care products, shampoos and conditioners, as well as a wide range of products including bubble baths, baby wipes and household detergents. Diazolidinyl urea is found in the commercially available preservative Germaben.