I've been a lurker on this site for years, and have been following this thread as I too was intrigued by the ad in Instyle. I am always leary of Internet reviews, both good and bad, as you never really know the motivation behind either. Also, with so many different hair types and variables I figured I was bound to see mixed reviews, so I decided to take the plunge and try for myself. I am happy to report that my results were really good. I have washed my hair now 2 times since applying the treatment and I have no frizz in my hair when air dryed and blow drying straight took 1/2 the time it normally does. Also my hair doesn't "grow" in the humidity anymore. For an at-home, DIY treatment, I think its great and inexpensive (I'm sure I have enough treatment left to do it 1 or 2 more times).