Are shampoos with sulfates bad for color-treated hair?

Are shampoos with sulfates bad for color-treated hair?

Nancy Braun (Master Colorist) gives expert video advice on: How can I keep my brown hair beautiful?; What are the unique color needs of redheads?; Why does red hair color fade so quickly? and more...

There's a lot of hype about sulfates. And there's a lot of information - you know, "no sulfates." Sulfate is a lathering agent, to my knowledge. So it creates lather. In America, we love lather because we feel like it's clean. I've used many a shampoo with sulfates; I've had great results. Again, every texture of hair is different and every product...you know, you will find the perfect product for your hair through trial and error.