DMDM HYDANTOIN
Is DMDM HYDANTOIN safe for seborrheic dermatitis?
DMDM Hydantoin is generally a lower-concern ingredient within the cosmetic uses assessed, but it can be unsuitable for someone with a relevant contact allergy. Its job is to protect the product from microbial spoilage, not to treat seborrheic dermatitis.
No applicable evidence found for this page shows that DMDM Hydantoin feeds Malassezia or improves a flare. Preservative concentration, regulatory limits and personal allergy history matter. Stop using the product if it repeatedly causes itching, burning or a rash and seek professional advice if a reaction persists.
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What is it?
A quick identity check, separate from the seb derm guidance above.
01 / 05- Material type
- Cosmetic preservation ingredient
- Ingredient family
- Formaldehyde-releasing preservative
- Cosmetic function
- Preservative
What is DMDM HYDANTOIN used for in skincare?
DMDM Hydantoin is a preservative that releases small, controlled amounts of formaldehyde to limit unwanted microbial growth inside a cosmetic. It is used under concentration restrictions and may be combined with other preservation measures. Product protection should not be confused with treatment on skin.