A few years ago someone that worked in the building next door to me went on this - she was a newspaper sub editor - auburn/ginger haired girl called Liz.
She had the teeth done, hair etc and got a personal training etc etc (last time I saw her she was still drinking her drinks through a straw like she was told) but she looked eactly the same as before she went on it.
Not sure about Mylene though didn't she do that other programme forgotten name where everything was kept natural and love what you've got?