Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Skeptical But It Might Be What's Helping Me

My sister---who had a lot of knee pain---recommended this product to me. It sounded like a home-shopping network hype. I was very skeptical. There's nothing in this but rice bran and a few herbs. But I had a serious ankle injury that's resulted in arthritis that is getting progressively worse. I'm desperate, and so was willing to gamble the less than $50 for a month's supply. After a couple of weeks, I noticed I was in less pain. I was (and still am) cautiously optimistic. (I've had short-lived improvements before.) But I've ordered another three months' supply.