Dear Dr. Reitz: My 22-year-old daughter frequently gets oral ulcers. The ulcers, also called canker sores, occur in different areas of her mouth, last for about 10 days then are gone for a few months ...

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 ...

If you’ve done any extensive research into what’s good to put on your curls, you’ve probably already come across the term SLS. Sodium Lauryl Sulfate (better known as SLS), is a cleansing agent found ...