Preservative
DIMETHYL OXAZOLIDINE
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 effectively but slowly releases formaldehyde — an IARC Group 1 carcinogen and well-known sensitiser. EU-restricted and increasingly avoided in modern formulas.
Skin benefits
- Broad-spectrum preservative against bacteria
- Effective at low concentration
- Stable across pH range
Known concerns
- Formaldehyde-releasing preservative — slow release of free formaldehyde (IARC Group 1)
- Documented contact allergen
- EU Annex V restricted with strict use limits
- Increasingly phased out in modern cosmetics
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.