4,4-Dimethyl-1,3-oxazolidine

48

Caution

CAS Number: 51200-87-4

About 4,4-Dimethyl-1,3-oxazolidine

4,4-dimethyl-1,3-oxazolidine is a cosmetic ingredient. Exercise caution due to limited available safety data.

Detailed Analysis

4,4-Dimethyl-1,3-oxazolidine (DMDMH) is a formaldehyde-releasing preservative used in cosmetic formulations. It carries H226 (flammable liquid), H302, H312, H315, H317 (skin sensitization), H318 (eye damage), H332. The EU Annex III listing restricts its maximum concentration to 0.1% in finished products. Formaldehyde-releasing preservatives are under ongoing safety review due to sensitization concerns and the classified nature of formaldehyde itself as a carcinogen.

Known Concerns

  • ⚠ Formaldehyde releaser
  • ⚠ Skin sensitization potential (H317)
  • ⚠ Eye damage concern (H318)
  • ⚠ EU Annex III restriction (max 0.1%)
  • ⚠ Formaldehyde classified as carcinogen (H351)

Safety Score

48

Caution

Based on EU regulatory data, published safety research, and ingredient function analysis.

References

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EU CosIng Database

European Commission cosmetic ingredient registry

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This information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional for skin concerns or allergies.