I wish I had had Andrea's experience, but I had the treatment done and it did nothing for my hair. Nothing. NOTHING. I'm still ticked about the amount of money I spent to create absolutely no change in my hair. As far as I know, I did everything right - the mandatory not washing it period, etc. When I mentioned this to my stylist, she just shrugged and said that sometimes it doesn't work on people. Um... that response and a bad haircut later and she's no longer doing my hair.
My hair is thin, coarse, spastically curly and it's thick (as in, I have a lot of it).
At this point I just rely on my flat iron and good products and I accept that I have special-needs hair that needs a little extra time to become presentable.
"With all its sham, drudgery and broken dreams, it is still a beautiful world. Be cheerful. Strive to be happy."