I have my hair dyed bleach blond/almost white, but after a trip to the salon my roots came out YELLOW, like corn! My hair dresser recommend this product and it worked magnificently. I saw an immediate improvement with the yellow and over time (maybe a month or so) it has almost eliminated the problem entirely. Highly recommend this product. It also leaves your hair feeling nice and healthy, everything I could hope for in a shampoo for fake blonds!