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Diazolidinyl Urea
An antimicrobial preservative that slowly releases small amounts of formaldehyde in cosmetic products.
Category/Notes
Preservative (antimicrobial)
Benefits
Extends product shelf-life by inhibiting bacterial and fungal growth. By preserving the product, it prevents spoilage that could harm skin. (Use has decreased due to allergen concerns. Safe at approved concentrations, though some consumers may develop sensitivity.)