Product details:Featured in the hair magazine hall of fame after winning best anti-dandruff shampoo for three years in a row, this shampoo has been formulated specifically to relieve and clear flaking and itchy scalps. Careful research has resulted in a mild and soothing but highly effective shampoo that will leave hair shiny and manageable, whilst quickly clearing it of irritation. This product is sold exclusively in this size at M&S. Philip Kingsley Flaky Itchy Scalp Shampoo 170ml