Review title is Mystery substance helps quite a bit. [SEP] I have no idea what this stuff is or how it works, but it helps my mouth when it's irritated or when I have a sore in it. I had a canker sore (which I tend to get when I'm sick or stressed) and it healed it up before it grew larger as it usually does. I burnt my tongue on hot tea last week and swished this around my mouth mixed with water a few times, and my tongue was fine the next day. It doesn't heal you up right away, but it seems to make you heal faster. It burns and tingles too, so if you hate that feeling I'd avoid it.