Although tonsil stones don't simply fall out as some reviewers claim for me, it definitely seems to loosen them, making it easier for me to get it out with the tip of a toothpick (only recommended for people with steady hands). They seem to form less frequently as well, although I still regularly get them every few weeks. Make sure you follow the instruction because I found that it doesn't really work as well if you do a quick job. I wish it was a bit cheaper as well. It's a little pricey for what it is.

I followed the directions to a T, including all prep and cleaning chemicals. The materials never hardened. The packaging appeared old so I am guessing that the chemicals may have been old also. No date on the package, so, unable to determine. Chemicals have a shelf life and may have been the case here. To fix my problem, I ended up cutting new threads and a new drain plug. There are no short cuts to fix stripped threads....period.