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Anne Marie Helmenstine, Ph.D.

Is Alum Toxic?

By August 26, 2013

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Alum CrystalAlum is a common household chemical. You'll find it in baking powder, deodorants, maraschino cherries, styptic pencils, aftershave and some pickles. It is also used as an emetic (to cause vomiting). While alum is approved for use in food and cosmetics by the U.S. Food and Drug Administration, that doesn't mean it's safe to ingest by itself or that chronic exposure is non-toxic. There is risk associated with the alum and also the aluminum in the compound... Learn more

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