Heres the thing... this product entices a brunette, which A BRUNETTE IS A BROWN TO DARK BROWN color, to get a subtle lightening effect which would seem promising considering subtle ombres are really popular.. My advice to this product line is to do all REAL brunettes a favor and stop advertising for "brilliant brunettes" if you really mean a dark/dirty blonde. They are entirely different colors on the spectrum of levels.
They advertise that it will lift one level. My hair is completely natural level four maybe 5, not a lick of color in it, so if it was going to work it would work on mine, considering color will not lift color, and they say there is peroxide in it. Mind you, my hair is also fine and straight, all the features it is advertised to work best on. And Nope. Not a bit. And if it was going to work at all it would be the most possible on completely natural color. Only plus is it is sold dirt cheap, but that's because it wont fulfill its promises. Don't waste your money, ladies.