The Goodbye Yellow line is for clients looking to maintain their cool blonde by neutralizing warm undertones, anticipating color fading and enhancing its intensity. Goodbye Yellow Neutralizing Bonding Wash is SLS / SLES sulfate free and guarantees gentle cleansing of the hair. Sulfate-based surfactants such as SLS and SLES * can irritate the scalp and hair. * (Sodium Lauryl Sulfate / Sodium Laureth Sulfate). Try Goodbye Yellow for a bright and intense blonde.