I've been thrilled with this product - I've used Index 2 twice and my hair feels great and I'm not nervous about using it at all (at least not anymore - I was terrified the first time, since that was my first "do it yourself"). Like it better than the Mizani I used to get at the salon, because I don't like my hair bone straight. By the way - the package contains 2 applications if you're doing a touch-up. Got mine at beautysak.com for $45 this past December, making it much less costly each time than the Mizani at the salon. Went a little crazy with the expensive conditioners and shampoos afterward, tho.......expensive line for a PJ...