Sulfochem™ SLS-K surfactant is a naturally-derived, traditional component of cost-effective surfactant systems due to its excellent foam and viscosity response characteristics. Uses include clear or pearlescent shampoos, cleansers, bath and shower products. Sulfochem™ SLS-K surfactant contains methylchloroisothiazolinone (and) methylisothiazolinone as a preservative and has no added formaldehyde.