Composition
The active ingredients listed on Listerine bottles are essential oils menthol 0.042%, thymol 0.064%, methyl salicylate 0.06%, and eucalyptol 0.092%. In combination all have an antiseptic effect and there is some thought that methyl salicylate may have an anti inflammatory effect as well. Ethanol, which is toxic to bacteria at concentrations of 40%, is present in concentrations of 21.6% in the flavored product and 26.9% in the original gold Listerine Antiseptic. At this concentration, the ethanol serves to dissolve the active ingredients.
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- Materials Safety Data Sheet for Listerine Antiseptic Mouthwash, Original-05/22/2008
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