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Paraformaldehyde

CAS 30525-89-4
30

Safety score · 0–100

Caution

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

Paraformaldehyde is a cosmetic ingredient. Exercise caution due to limited available safety data.

Paraformaldehyde is a formaldehyde polymer that releases formaldehyde upon degradation. Under EU Cosmetics Regulation Annex III, it is restricted as a preservative with specific concentration limits: 0.2% in oral products and 5% in other cosmetic products. Formaldehyde must be labeled when present above 0.05%.

Known concerns

  • Formaldehyde releaser - EU Annex III restricted preservative
  • Concentration limits vary by product type (up to 5% in some products)
  • Mandatory labeling above 0.05% free formaldehyde

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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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.