In her vlog after the show she said that she uses a variety of wig lines but they're always cut, colored and styled to suit her. She also has a line of wigs coming out in July I think.
You might want to check out her after show thing she does online. She talks about the things she wore and all. I've only seen one of the after show things online so not sure if she still posts them but check out her website.
I do know that the website will mention what she wore afterwards also.