The world is divided into two types of people: those who prefer to chat and engage in some "collective therapy" when they go to the hairdresser, and those who don't know how to achieve silence. At the Catalan salon Integral, In Barcelona's Eixample district, there's still a third category: those who choose to listen attentively to all the knowledge Jordi Boix displays about the world of hair while he scissors them. This Barcelona native is an unusual hairdresser: he opened a center that uses only non-toxic cosmetics, and he never misses an opportunity to combat the "vast ignorance" he claims to have about how to care for our hair.