Got canker sores? Try switching your toothpaste.
Those who used SLS-free toothpaste reported that their ... sulfate include Crest Pro-Health Densify Active Repair Toothpaste ...
BBC5y
Should I try SLS-free toothpaste?
SLS-free toothpaste has become increasingly common on our supermarket shelves; but what is it, and should you be using it? SLS-free Toothpaste is free from a chemical called Sodium Lauryl Sulfate ...