Formaldehyde-releasing preservative
3-Ethyl-2-methyl-2-(3-methylbutyl)-1,3-oxazolidine
Safety score · 0–100
Caution
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
An oxazolidine preservative that releases formaldehyde to provide antimicrobial activity. Formaldehyde donors are increasingly restricted because of allergy and irritation concerns.
Skin benefits
- Used as an industrial biocide or oxazolidine-based preservative
- Acts against bacteria and fungi at low concentrations
Known concerns
- Oxazolidine class is a known formaldehyde releaser
- Formaldehyde donors are documented contact allergens and CMR concerns at higher exposures
- EU and global cosmetic restrictions on formaldehyde and its releasers
- Substantial labeling and disclosure requirements limit consumer-facing safety
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related formaldehyde-releasing 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.