What's the best product for platinum blonde hair?

I have natural brown hair, but I dye it blonde. Every hair salon I go to, they dye it blonde but it always turns out as a goldish blonde. What is the best product to use if I want platinum blonde hair?

You should be able to tell your hair stylist that you want platinum blonde hair and they should be able to make it that color for you. I get my hair highlighted with platinum blonde streaks and they never look gold. I guess if that doesn't work get a bleaching kit from wal-mart or somewhere. The longer you leave it on (for up to 45-50 min), the lighter it gets!