I have used L'oreal Series Expert for a long time and have been buying the most amazing hairspray ( infinium3 ) for years. I find this line to be the biggest bang for your buck there are many top notch products out there but this one is simple to learn, use , and sell. It sells itself with a quick transforming shampoo, you know it works you feel and see the difference immediately. The in salon treatments surpass all that I have tried and gives hope to over processed hair. All I can say is try it you will LOVE IT!