Dmdm Hydantoin
Updated
1,3-bis(Hydroxymethyl)-5,5-dimethylimidazolidine-2,4-dione
Purpose
Formaldehyde-releasing preservative.
Rating
BAD
Category
Preservative
INCI Purpose
PRESERVATIVE
Alternative Names
At a Glance
Article
DMDM hydantoin is a synthetic, formaldehyde-releasing preservative that has mixed research on its potential to aggravate skin. Despite its connection to formaldehyde, the Cosmetic Ingredient Review Board has confirmed the safety of this preservative in three separate reviews, each spaced several years apart.
See: Formaldehyde-Releasing Preservative
References