Schwarzkopf Goodbye Yellow Shampoo is a powerful silver shampoo specially formulated to neutralise unwanted yellow undertones in blonde, bleached or grey hair. The formula contains strong, direct-acting pigments that help keep the colour fresh and cool, ensuring that hair retains its shine and does not become dull. This shampoo is perfect for those who want to refresh their hair colour without chemical treatments and provide a visibly cooler shade after each use.