YSK - your toothpaste may be causing canker sores in your mouth
If you get canker sores frequently and can’t figure out why, check your toothpaste ingredients. Many common brands contain sodium lauryl sulfate (SLS), a foaming agent that helps toothpaste lather—but it can also irritate the soft tissues in your mouth.
For some people, SLS disrupts the protective lining of the oral mucosa, making it easier for canker sores (aphthous ulcers) to develop. This doesn’t affect everyone, but if you’re prone to recurring sores, it may be worth paying attention to.
Studies have shown that switching to an SLS-free toothpaste can reduce the frequency, severity, healing duration, and pain of canker sores in susceptible individuals.
Citation: https://onlinelibrary.wiley.com/doi/abs/10.1111/jop.12845
Why YSK - Canker sores are painful and frustrating, and many people don’t realize that something as routine as brushing your teeth could be contributing to them. Switching to a SLS free toothpaste is a simple change that may save someone a lot of discomfort.