The coloured nozzles on Schwarzkopf Session Label products serve as an easy-to-use guide for stylists, helping them quickly identify the product’s function. Each colour corresponds to a different category of styling, whether it’s creating volume, adding texture, or providing control. For example, products like The Strong and The Flexible feature colours that represent hold, while items like The Powder and The Thickener have nozzles that signal their volumising properties.