CheckVegan

Is Diazolidinyl Urea vegetarian?

Diazolidinyl Urea

Vegetarian Vegetarian
Vegan Vegan

Diazolidinyl urea is a synthetic antimicrobial preservative used in cosmetics that works by slowly releasing formaldehyde.

Also known as 1-[1,3-bis(Hydroxymethyl)-2,5-dioxoimidazolidin-4-yl]-1,3-bis(hydroxymethyl)urea, DIAZOLIDINYL UREA
INCI name Diazolidinyl Urea
CAS number 78491-02-8
EC number 278-928-2
CosIng ID 31356
Last reviewed 4 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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