Ingredient
DMDM Hydantoin
Caution
What is this ingredient, what does it do?
Formaldehyde-releasing preservative
May cause irritation
What is it, what should you do?
A "formaldehyde-releaser" preservative that protects a product by slowly releasing a very small amount of formaldehyde over time. Because formaldehyde is a definite carcinogen this group is controversial; although the amount released in cosmetics is very low, it can cause allergy and irritation in sensitive people. If you have a formaldehyde allergy (which can develop from hairdresser products), stay firmly away from these three names.
Other names: Imidazolidinyl urea, Diazolidinyl urea
Related ingredients
This is general information, not medical advice. The assessment may vary by skin type.
Start scanning