Sulfochem™ ES-2CWK surfactant is a naturally-derived, low viscosity, low color and odor version of SLES, preserved with methylchloroisothiazolinone (and) methylisothiazolinone. Low salt levels allow for easier low viscosity formulating. It can be thickened with salt to the same viscosity as traditional SLES products. Sulfochem™ ES-2CWK surfactant is a versatile, cost-effective surfactant for use in personal cleansing products, when superior flash foam and copious lather characteristics are desired.