Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't work on black hair

I suspect all the people with success stories don't have the same jet black hair I have. Or maybe you have to remove it quickly to have results... I'm not sure. My hair is naturally dark blonde and I dyed it jet black just over a year ago. I decided to take it back to my natural color, or at least SOMETHING lighter, and this (along with several other color removal products) did nothing for me. Scratch that, my roots are a horrible shade of blonde now and my black is still very black. Not even a lighter shade of black- no change at all. Bleach appears to be my only option other than accepting forever black hair. Never again.