Diazolidinyl urea is a common preservative used in many cosmetic and personal care products. It works by slowly releasing formaldehyde, which prevents the growth of bacteria, yeast, and mold. This helps to extend the shelf life of products and protect consumers from contamination.
NonePreservativeVeganEvidence: High
BenefitNone 0 / 4
RiskHigh 2.5 / 4
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
potential for skin irritation
known allergen for some individuals
releases formaldehyde
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Diazolidinyl urea is a preservative commonly found in cosmetics and personal care products. Its primary function is to prevent microbial growth, thereby ensuring product safety and extending shelf life.
Is diazolidinyl urea safe?
While effective as a preservative, diazolidinyl urea is a known formaldehyde-releaser, which can be a concern for some individuals. It is also a recognized allergen and can cause contact dermatitis in sensitive people.
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