DMDM Hydantoin
Notable concerns
INCI · DMDM HydantoinCAS 6440-58-0
Also known as: 1,3-Dimethylol-5,5-dimethylhydantoin
Preservative
In plain language
A widely used antimicrobial agent that prevents product spoilage by acting as a formaldehyde donor.
Currently being phased out by many brands due to negative consumer perception regarding formaldehyde exposure.
Where it can be sold
Simplified regulatory status by market — for guidance, not compliance advice.
European UnionRestricted
Max 0.6%. Label warning required if free formaldehyde > 0.05%.