SLSA for Shampoo Bars SLSA, also known as Sodium Lauryl Sulfoacetate, is a high-foaming anionic surfactant widely used in solid personal care formulations. In shampoo bars, SLSA helps create rich foam, improves cleansing performance, and supports a pleasant washing experience. For brands developing solid shampoo bars, waterless hair care products, or sulfate-free-style cleansing systems, SLSA fine powder is a practical …