Preservative
DMHF
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A formaldehyde-releasing preservative — protects products from microbes by slowly releasing formaldehyde. Formaldehyde is an IARC Group 1 carcinogen and a common contact allergen, so this is best avoided.
Function
Skin benefits
- Broad-spectrum antimicrobial preservative
- Effective against bacteria, yeast, and mold
- Cost-effective preservation system
Known concerns
- Formaldehyde-releaser — formaldehyde is IARC Group 1 carcinogen
- Significant skin sensitization and contact dermatitis potential
- EU restricted under Annex V — declaration required when formaldehyde > 0.05%
- Cross-reactive with other formaldehyde-allergen-sensitized users
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, so always read the physical product label and consult a healthcare professional for personal concerns.