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MAGNESIUM

CAS 7439-95-4
45

Safety score · 0–100

Moderate

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

Elemental magnesium metal — flammable as a fine powder and not directly used on skin. Cosmetic ingredients are usually magnesium salts; exact INCI raises a flag for context.

Skin benefits

  • Source of magnesium ion in some salts
  • Used as a reducing/processing material
  • Trace mineral in skincare blends

Known concerns

  • Elemental magnesium metal is reactive — flammable in fine powder
  • GHS flammable solid hazard
  • Cosmetic relevance is the salt forms, not the metal
  • Inhalation/dust hazards in handling

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, so always read the physical product label and consult a healthcare professional for personal concerns.