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1-Methylhydantoin-2-Imide and Imidazolidinyl Urea are both keeps the product fresh ingredients. 1-Methylhydantoin-2-Imide is found in 8 products while Imidazolidinyl Urea appears in 11, making Imidazolidinyl Urea the more widely used option.
Keeps the product fresh
Formaldehyde-releasing preservative
1-Methylhydantoin-2-Imide is categorised as "Keeps the product fresh" while Imidazolidinyl Urea is categorised as "Keeps the product fresh". They serve different functions in skincare formulations.
In most cases, these ingredients can be used together. However, always patch test and introduce new ingredients gradually.
1-Methylhydantoin-2-Imide is found in 8 products, while Imidazolidinyl Urea is found in 11 products in our database.
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