Preservative
MDM HYDANTOIN
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A formaldehyde-releasing preservative — kills microbes by slowly releasing formaldehyde, a known sensitizer and IARC Group 1 carcinogen by inhalation. EU restricted; flagged by sensitive-skin advocates.
Skin benefits
- Effective broad-spectrum preservative
- Active against gram-negative bacteria and fungi
- Cost-effective in mass-market products
Known concerns
- Formaldehyde releaser — releases formaldehyde over time
- Skin and respiratory sensitization potential
- EU restricted as formaldehyde-releasing preservative
- Off-limits for sensitive-skin and pediatric products
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related preservatives
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.