Preservative (formaldehyde releaser)
DEDM HYDANTOIN
Safety score · 0–100
Moderate
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A hydantoin-class preservative that slowly releases small amounts of formaldehyde to inhibit microbes. Effective but a notable contact allergen and increasingly avoided in modern clean formulations.
Skin benefits
- Effective broad-spectrum preservative against bacteria and fungi
- Stable across a wide pH range
- Helps protect formulas from microbial spoilage
Known concerns
- Formaldehyde-releasing preservative
- Documented contact allergen, especially in formaldehyde-sensitive individuals
- EU restricts use and requires labelling when formaldehyde is released
- Avoided by brands moving away from formaldehyde donors
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related preservative (formaldehyde releaser)s
Same plant / compound family
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.