About SEW Hair As a young woman, I (Sarah) come from a family of women with all fine, thin hair & no shampoo or product ever seemed to help. My first real experience was with clip-in extensions, but I found I had to backcomb my hair like crazy so they would stay in, but more often than not they would always slide out. A girlfriend of mine started working at a traditional extension salon down in Calgary, and one week in 2005 I went down for work. She not only installed my first set of extensions but taught me how to install extensions for others. Needless to say, I have been obsessed since then. Since that day, I have now acquired 9 certifications for installation methods.