some people get fewer canker sores when they switch to a toothpaste that DOESN'T contain sodium lauryl sulfate (SLS)
January 1996
A recent report suggests that some people get fewer canker sores when they switch to a toothpaste that DOESN'T contain sodium lauryl sulfate (SLS).
SLS is a detergent that's in almost all toothpastes.
Researchers speculate that SLS dries out the protective mucous lining in the mouth...making it vulnerable to irritants that lead to canker sores.
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