Use this shampoo without sulfates to counteract yellow. Neutralizing Schwarzkopf Goodbye Yellow Shampoo leaves a tonal deposit that prevents and neutralizes underlying warm tones while gently cleansing. Because of its highly pigmented formula, your clients can truly bid their yellow glow in hair farewell! With blue and purple direct dyes combined with a pH of 4.5, the days of undesired yellow undertones are coming to an end! Your clients can anticipate durable outcomes. Just give it a full five minutes to work, then brush your hair thoroughly. 500 ml or 300 ml bottles are available.