Sodium lauryl sulfate (SLS) is a common ingredient found in many personal care products, such as shampoos, toothpaste, and body washes. It is a surfactant, which means it helps to create lather and remove dirt and oil from surfaces. SLS is known for its ability to produce foam, making it popular in products that require cleansing. While SLS is effective in cleaning, it can sometimes cause skin irritation for sensitive individuals. As a result, some brands offer SLS-free alternatives for those who prefer gentler formulations. Understanding the role of surfactants like SLS can help consumers make informed choices about their personal care products.