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Magnesium Stearate
A magnesium salt of stearic acid used as a lubricant and flow agent in pharmaceutical and supplement manufacturing.
Mineral or nutrientUpdated Feb 14, 2026
Health score+2.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- 0.8 mcg
- Health guideline
- 0.05 mcg
Risks
Potential minor irritation in sensitive individuals, possible interference with absorption at high doses
Benefits
Improves powder flow, prevents ingredient clumping, aids manufacturing consistency
References
Waters containing Magnesium Stearate
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