Instruct: Classify Amazon reviews into positive or negative sentiment
Query: don't waste your money, it doesn't work.

I ran out of Panoxyl and the drugstore had this stuff. I saw the 10% benzoyl peroxide and thought it would do the same as Panoxyl. It didn't. My acne was so bad, it looked like I didn't use anything. I thought at first I was having an especially bad break-out, but after a week or two, it wouldn't improve. I ordered Panoxyl, and withing 24 hours there was a BIG difference. I honestly think the 10% label is a lie. I have always had great sucess with benzoyl peroxide, most people think I don't have an acne problem. Using this had the same result as washing my face with plain soap. It sucked.