Preservativemedium risk Common irritant
DMDM Hydantoin
INCI · DMDM Hydantoin
A formaldehyde-releasing preservative used in hair care products.
🤖Ask AllerBot“I'm allergic to DMDM Hydantoin — what should I avoid?”Why dermatologists flag it
Formaldehyde releaser - subject of class action lawsuits
How common is it?
DMDM Hydantoin appears in 15 of 4,442 products (0.3%) in the AllerNote catalog, most often in cleansers (7 products). See the full prevalence dataset →
Names to look for on labels
DMDM Hydantoin appears under any of these names — manufacturers choose between INCI, common, and local-language terms freely.
DMDM HydantoinGlydant1,3-Dimethylol-5,5-dimethylhydantoinडीएमडीएम हाइडेंटोइन
Common product categories
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