What Are the Dangers of Magnesium Stearate?

Magnesium stearate is a white powder that is derived from plants. Low amounts of magnesium stearate do not pose significant dangers, but excessive and dry magnesium stearate powder is particularly hazardous.

Explosion Hazard

• Powder or the granular form of magnesium stearate is a dust explosion hazard, especially around a spark or open flame. Fine dust is distributed in the air in high concentrations.

Combustion

• Magnesium stearate is highly flammable in the presence of oxygen. The chemical compound decomposes upon burning, emitting toxic and irritating fumes.

Chronic Exposure

• Extreme and chronic inhalation of magnesium stearate can lead to pneumonitis, pulmonary edema, and cyanosis, which produces a bluish discoloration of the skin and mucous membranes.

Inhalation risk

• Health problems from excessive inhalation of magnesium stearate include suppression of the immune system, improper cell function, difficulty in breathing and coughing.

Physical Dangers

• Magnesium stearate exposure can irritate eyes.