Antica Barbieria Colla has been Milan's barbershop since 1904, still run today by the Bompieri family. The recipe is from 1924 - the year Dino Colla formulated several of the house's founding shampoos, each built around a single ingredient's particular properties. This one, made for oily hair, is built around walnut: astringent, sebum-balancing, a corrective that works with the scalp rather than against it. At some point in the mid-twentieth century, a popular Milanese songwriter became a devoted client. When production of the Walnut Shampoo was interrupted for a period, he complained directly to Bompieri - threatening to break the strict dress code of the time and arrive at Via Gerolamo Morone in tennis shoes, a shoe to which he had recently dedicated a song. Production resumed. Used regularly, it normalises sebum production without drying, and keeps hair clean for longer. 200ml. Hand-made in Italy. Exclusive to Australia.