Canker sores are vexing and common. The reason they occur isn’t clear, but your toothpaste could be a factor. An ingredient often used to make toothpaste foamy, sodium lauryl sulfate (SLS), has been ...

SLS in toothpaste is a chemical compound also known as sodium lauryl sulphate. It is a key ingredient that is found in most toothpastes. It helps make that to the toothpaste thicken while removing ...

If you’ve been periodically rocking canker sores on your inner lips, then it might have to do with the kind of toothpaste you’re using. Yes, it seems unfair that you, being a responsible oral ...