Head & Shoulders has always been the go-to brand if you've dealt with dandruff or a sensitive scalp. This month, it's gone and launched an entire range dedicated towards keeping your scalp happy and healthy, whether it's oily, itchy, or in need of a deep clean. All three formulas — including the Head & Shoulders Deep Cleanse Itch Relief Anti Dandruff Shampoo (£6), shown here — contain the brand's hero ingredient, piroctone olamine, which helps reduce the flaking associated with dandruff for up to 72 hours, as well as a new proprietary "deep pore cleansing technology" that, according to the brand, helps decongest the scalp.