Sodium Laureth Sulfate (SLES) is a common ingredient found in many personal care products, such as shampoos, body washes, and toothpaste. It is a surfactant, which means it helps to create lather and remove dirt and oil from surfaces. SLES is derived from natural sources, like coconut oil, and is known for its cleansing properties. While SLES is effective in cleaning, it can sometimes cause skin irritation for sensitive individuals. It is often compared to another surfactant, Sodium Lauryl Sulfate (SLS), which is considered harsher. Many brands now offer SLES-free options for those seeking gentler alternatives.