What client wouldn’t want any of Kim K’s ever-changing hairstyles? Unfortunately, unless that client has A-list stylist Chris Appleton on speed-dial, going from mermaid-length locks to a fiery mahogany lob seemingly overnight just isn’t realistic. What most clients don’t understand is that endless hours, insane effort and tons of energy go into every A-list hairstyle spotted on Instagram—and not every look can be easily recreated in real life. Here, five salon facts stylists are dying to tell their clients.