A conversation with the show's hair designer Sarah Hindsgaul.

Wavy hairstyles are all the rage, even among people with straight hair. But using a curling iron is fiddly and time-consuming and you also risk singeing your hair. So if you want to keep your curls ...

Editor’s note: German inventor Karl Nessler patented the first permanent wave machine, which used borax solutions and electric heated rollers to curl the hair, in 1909. About a decade later, this ...