Why Does SLSA Powder Make You Cough? Understanding “SLSA Cough” and How to Prevent It Sodium Lauryl Sulfoacetate, commonly known as SLSA, is one of the most popular surfactants used in bath bombs, bubble bars, foaming bath salts, shampoo bars and powder cleansing products. It is loved by formulators because it creates rich, creamy and long-lasting foam while supporting sulfate-free …