Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't do anything

This product is definitely not worth the money or effort to try. My hair is already red and it didn't change my hair's color unlike other reviewers, but it didn't really do anything. My hair is no shinier as the package promised. It didn't do any visible damage to my hair, but I'd rather have spent the money on a better product. Try something different if you want smoother and shinier hair - this one's a dud.