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DIAZOLIDINYL UREA

Description

Diazolidinyl urea is a widely used preservative in cosmetic and personal care products, known for its broad-spectrum antimicrobial activity. This synthetic compound effectively inhibits the growth of bacteria, yeasts, and molds, thus extending the shelf life of various formulations. Typically found in concentrations ranging from 0.1% to 0.5%, diazolidinyl urea is particularly effective when combined with other preservatives like parabens.

This ingredient functions by releasing formaldehyde in small amounts over time, which is the primary mechanism for its preservative action. While formaldehyde-releasing preservatives have faced scrutiny, diazolidinyl urea is considered safe for use in cosmetics by regulatory bodies when used at approved concentrations. However, it may cause skin irritation or allergic reactions in some individuals, particularly those with formaldehyde sensitivity.

Diazolidinyl urea is soluble in water and compatible with a wide range of cosmetic ingredients, making it versatile for use in various product types including creams, lotions, shampoos, and makeup. Its efficacy in maintaining product integrity, coupled with its ability to work synergistically with other preservatives, has made it a popular choice among formulators despite ongoing debates about formaldehyde-releasing compounds in skincare.