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Preservative

Sodium hydroxymethylamino acetate

CAS 70161-44-3 Updated
25

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. EU Annex III restricts it because it slowly releases formaldehyde, a known sensitizer and IARC-classified carcinogen.

Skin benefits

  • Preservative-booster activity

Known concerns

  • Formaldehyde-releasing preservative
  • EU Annex III restricted
  • Skin sensitizer
  • Formaldehyde labeling threshold

References

EU

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.