Malibu C Un-Do-Goo Shampoo is fantastic. I had already had my hair permed several months ago and I went to a hairdresser to get my hair done with three beautiful tones, a nice dark mahogany red, a little lighter than caramel blond and a mocha. But what I got was a huge block of fire red/pink in the back of my head. I used Un-Do-Goo to get the red to lighten so I could get the right red put on. It was great it took out most of the red so that the color correction was easier.