L\'Oréal Professionnel Série Expert Magnesium Silver Neutralising Shampoo is a deep purple shampoo designed for use on grey, white and light blonde hair, to keep unwanted brassy tones and yellowy undertones at bay. This powerful, silver shampoo contains the latest anti-yellowing technology while enhancing softness, manageability and shine. This expert silver shampoo features a professional formula and is enriched with magnesium to promote healthy, strong hair. Ideal for both naturally grey, white or dyed hair, the gentle yet effective ingredients help to neutralise stubborn tones while ensuring hair is maintained to salon standards. The amino acids in the shampoo work to maintain your colour, while retaining purity from root to tip. To use, simply wet hair thoroughly and distribute evenly from root to tip. Massage for around 30 seconds to create a luxurious lather, then rinse thoroughly. Repeat as needed. We suggest keeping the water lukewarm for maximum shine and colour pay-off post-wash. As this shampoo features salon-strength, anti-yellowing agents we recommend washing hands thoroughly to avoid staining.