Imidazolidinyl urea is a common antimicrobial preservative used in cosmetics and personal care products. It works by releasing small amounts of formaldehyde, which inhibits the growth of bacteria, yeasts, and molds. This helps to extend the shelf life of products and prevent contamination.
NonePreservativeVeganEvidence: Medium
BenefitNone 0 / 4
RiskModerate 1.5 / 4
Sensitization
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
Potential for formaldehyde release
Can cause contact dermatitis in sensitive individuals
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Imidazolidinyl urea is considered safe for use in cosmetics at regulated concentrations. However, some individuals, particularly those with formaldehyde allergies, may experience contact dermatitis.
Does imidazolidinyl urea release formaldehyde?
Yes, imidazolidinyl urea is a formaldehyde-releasing preservative. It slowly releases small, controlled amounts of formaldehyde to effectively preserve cosmetic products.
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