Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Terrible!

This was a waste of time and money!A lot of people said that you could use it on unbleached hair, it is a LIE! I tried to use it on my black hair and it didn't show any change. Then I bleached my hair and when I tried to dye my hair with the after midnight blue dye it turned in to a greenish blue! Also a friend of mine who has light blonde hair tried a little bit and it turned green!It was terrible!My hands got more color than my hair.I wouldn't recommend this to anyone!