Bests & Worsts Reviews from Amazon

Started using this because it boasted alcohol-free. After a few weeks I was noticing brown stains on my teeth and couldn't figure out what was going on. I didn't even get stains like this when I was drinking coffee daily. Then I read the fine print on the bottle and it said right there may cause staining of teeth, what the eff, that's the exact opposite result I want in a mouthwash. Quit using and fortunately an expensive dental cleansing visit got the stains off. Crest your products are supposed to clean teeth, not make more work for the dentist. Don't use this stuff!