Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Please don't waste your money

I have two days left on this cleanse and it hasn't done anything beneficial for me. Last night my stomach started to hurt really bad. I haven't had a movement in two days when before I was fairly regular. I'm totally bloated and nothing's going anywhere. I've taken better cleansing products and definitely will never buy this one again!Not worth the money. You'd be better off with a couple bottles of prune juice!