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Preservative

MAGNESIUM PROPIONATE

CAS 557-27-7 Updated
78

Safety score · 0–100

Fine

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

About

The magnesium salt of propionic acid, used as a mild preservative. EU Annex V/2 permitted with strong food-grade safety; usual propionate caveats around acidic-pH activity.

Function

PRESERVATIVE

Skin benefits

  • Mild antimicrobial preservative
  • EU Annex V/2 permitted
  • Magnesium contributes mild buffering
  • Long food-grade safety record

Known concerns

  • Strong odor in concentrated form
  • Effective only in slightly acidic formulations
  • Mild stinging on broken skin

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.