Goldwell Dualsenses Color Extra Rich Brilliance Shampoo

Which shampoo should I use for fine color treated hair?

Is it sulfate free ?

Product line show 34 oz, bottle shown shows 1 qt/18 oz, description states 1 pound. which is it? if it's not 34oz, you should change your prod. line

Product line show 34 oz, bottle shown shows 1 qt/18 oz, description states 1 pound. which is it? if it's not 34oz, you should change your prod. line