Dry shampoo emerged in the 1970s as a product to facilitate head washing for people in bed, aged, hospitalized or without water supply. But in the 80s it becomes, by word of mouth, a beauty product with uses that move away from its original conception. Dry shampoo is the star product to have in the bag at any time of the year. For a morning in a hurry in which your sheets have been glued, an impromptu after work plan or an unexpected appointment that requires clean, shiny hair.