Instruct: Classify a given review into positive or negative sentiment.
Query: Another gimic gone wrong!

I always like to try crazy things and this is one of the craziest! First of all this stuff is like talcom powder but BLACK so it goes EVERYWHERE!!!! When you use it your mouth, teeth and tongue are BLACK (my tongue for hours) and it seems to splash all over everything unlike white toothpaste for reasons I don't understand. AND the SMELL! This stuff smells different than anything we ever smelled and it carries all through the house and my daughter cannot stand it. The thrill of using it wore off long ago!