I have been to a local Sally Beauty supply twice. The first time I was recommended a shampoo that supposedly everone raves about. After purchase I found it harsh, drying and difficult to apply (no suds). Recently I returned to see if they could recommend a product to help with my grey yellow hair. The sales clerk tried to be helpful and after a bit of time I was recommended a product. I read the back information about what the product was for, questioned the clerk because it did not seem to be the correct produxt for treating my problem. Unfortunately I listened to her and not my intuition and purchased it. After using it once it turned my entire hair yellow! After a visit to a salon that is quite familiar with coloring and products, it seems that this may be a very difficult problem to fix. May have to try several different things. Take my advice...do NOT ask for assistance with what products to purchase. My experience is that they don't know what they are selling and what their products are about and for. Save your money and go to a salon with experienced staff. You will be glad you did!