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Absorbent

MAGNESIUM OXIDE

CAS 1309-48-4 Updated
82

Safety score · 0–100

Good

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

About

Magnesium oxide — an inert white mineral used to absorb oil, buffer pH and bulk powders. Safe on intact skin; the only practical caveat is loose-powder inhalation.

Skin benefits

  • Oil absorption
  • pH buffering
  • Smooth powder feel

Known concerns

  • Inhalation of loose powder
  • Alkalinity on broken skin

References

EU

EU CosIng database

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

Related absorbents

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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.