listerine like other non-alcohol free mouthwash
contain ethanol an organic acid. We all know that acids are corrosive meaning ,
they burn the skin when come into contact, but ethanol is not a strong acids
like hydro-chloric acids, tro-oxonitrate
five s or tetra-oxo-sulphate (iv) acids, they are organic acids ,
organic aids
chemically behave like acids but they weak acids meaning that their physical properties
on other substance like human skin are less effective , this is why ethanol does not burn the human
skin like other acids but bring about a stinging or burning sensation.
Listerine
contain ethanol because of alcoholic content in it and therefor can cause
burning sensation when in contact with sensitive part of the body like the
tongue and gums.
Listerine contain isomers like
eucalyptol, menthol, thymol and methyl salicylate, isomers ca cause burning
sensation but they are needed to kill the bacteria around the gum.
As obtain from amazon .com Listerine
contain the following active ingredients: menthol methyl
salicylate , thymol ,Inactive Ingredients: Water, alcohol ,sorbitol solution,
flavoring, poloxamer 407, benzoic acid, sodium saccharin, sodium benzoate,
FD&C green no. 3.
the methyl salicylate silicate can burn skin when on
higher doses, methol also burn the skin, benzoic acid like any other organic
acids will give a burning or stinging sensation when in small percentages.
These and other ingredient in Listerine can cause
some burning sensation on the skin, this does not mean that Listerine is not safe for use , infact
it has been approved by FDA for home and
personal use,
It doesn’t burn , only a stinging and burning
sensation due to the presence of active ingredient needed to kill bacteria.
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