Ingredient · Updated

Imidazolidinyl Urea

Flagged in 1

Found in 1 product

What is Imidazolidinyl Urea?

Imidazolidinyl Urea is a preservative commonly used in cosmetics and personal care products. It is synthesized through the reaction of allantoin and formaldehyde, leading to the formation of a compound that releases small amounts of formaldehyde over time to prevent microbial growth.

It is primarily used to extend the shelf life of products by preventing bacterial, yeast, and fungal contamination. Health concerns are primarily centered around its formaldehyde-releasing capability, however, regulatory bodies have set limits on use to ensure safety.

When you see this ingredient on a label, it's typically used to preserve the product's integrity and safety over time.

Commonly found in: skin lotions, facial cleansers, makeup, shampoos, conditioners

What to watch

  • Releases formaldehyde, a known allergen and irritant.
  • May cause skin irritation or allergic reactions in sensitive individuals.

Benefits

  • Effectively extends the shelf life of cosmetic products by preventing microbial growth.
FDA

Imidazolidinyl Urea is permitted in cosmetics in the US, but its use is regulated due to formaldehyde release.

Research

Studies indicate effectiveness as a preservative, with some concern over irritation and allergenic potential.

Vegan

It is a synthetic compound and generally considered vegan.

Sources: Cosmetic Ingredient Review Safety Assessment

Scout's take

Milder formaldehyde-releaser. Formaldehyde is IARC Group 1.

All 1 product with Imidazolidinyl Urea

Where Imidazolidinyl Urea shows up

Higher-scoring picks without Imidazolidinyl Urea

Products from the same categories whose analyzed ingredient list does not include Imidazolidinyl Urea, scoring 80 or above.

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