Whether you're a goldilocks, or more of a silver-fox - yellow tones in hair is something better said goodbye to. This toning shampoo has highly effective violet pigments that help neutralize brassy tones, so that you can maintain and flaunt the colour that you actually opted for in the first place. Use in place of your regular shampoo once or twice a week, until the desired colour has been achieved. Start with a coin-sized amount for short or fine hair. Add more for longer or thicker hair. Apply to wet hair and work up a lather by massaging well into the scalp. Leave it on for up to 5 minutes. Rinse out thoroughly with water.