Preservative

Poor
IMIDAZOLIDINYL UREA

Imidazolidinyl urea is an antimicrobial preservative used in cosmetic products. It is used to protect products from spoilage caused by yeast, bacteria or mold included in the formulas. It is a formaldehyde releaser and one of the most widely used preservatives in the world, according to the National Cancer Institute.

Some people have a contact allergy to imidazolidinyl urea causing dermatitis. Such people are often also allergic to diazolidinyl urea.