Sodium Lauryl Sulfate, better known as SLS, is one of the most controversial ingredients in personal care. It’s praised for creating that satisfying lather we associate with cleanliness, yet blamed ...

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 ...