My hair is always being bleached, blowdried, and straightened so it is very damaged. I bought my first bottle of this shampoo & conditioner in october 2011 and my hair is so much healthier since. I shampoo it when I first get in the shower and then leave the conditioner in the remainder of my shower and rinse at the very end. Leaving it in a long time really penetrates the hair. My hair has never been this nice since I was about 13 when I started bleaching it. My hair is healthier & stronger after using the alterna shampoo/conditioner combo. I recommend this to everybody who's got damaged hair! It is well worth the money. I will never go back to drugstore shampoo/conditioner...or any other shampoo/conditioner. This is the ONLY shampoo/conditioner combo I will ever use again.