Cleaning, yes.  Remineralizing, not so sure.
I bought this because I've been exploring non-fluoride remineralizing tooth powders.*  I started with Frau Fowler's Mouth Medic, which I liked (see review there for more detail) but was disappointed to realize that 'supports remineralizing' doesn't seem to mean it actually has any remineralizing agents in it.  I moved on to Simply Sooney.  I'm like it to use, but I'm not so sure about the long-term benefits.  I haven't found any way to do my personal research into remineralizing yet.<br /><br />Pros: Cleans well.  That's the big one!  It isn't too sweet, isn't so salty it makes me drool, and I like the orange flavor.  It's all-natural.  It's affordable.<br /><br />Cons: there doesn't actually seem to be much research on whether bentonite actually helps remineralize teeth.  There are minerals in the clay.  You put the clay on your teeth.  Whether they're minerals that are useful to your teeth in preventing/fighting tooth decay is not clear.  Basically, it appears to be guess-work and it-sounds-reasonable thinking.  That doesn't mean it's wrong, but I'd like to see some solid research backing it up.  Another con is that it doesn't have a lingering alkalinizing effect, which I like, especially at night, to slow down the effect of naturally-produced destructive acids in the mouth.  Finally, the flavor isn't strong enough for me.<br /><br />Neutral: the consistency is a little weird, but I think I could get used to it easily.  It leaves a bit of a residue in the sink, but it's easily rinsed or wiped away.<br /><br />I may add some stuff to it to help with some of the cons, if I can find the right ingredients in a fine powder.  Otherwise, I'll probably keep looking after I use up this (generously sized) container.  But if I can't find anything with more research-supported ingredients, I'll probably come back to this one, because I do like it.<br /><br />Three stars because it advertises 'remineralizing' without satisfactory support, and that was the main thing I chose it for.  If it weren't for that (or if I found research supporting it after all), I'd give it a 4 or a 5.<br /><br />*I am not anti-fluoride.  I use a natural fluoride mouth rinse in the mornings.  I want an *additional* remineralizing agent, not a substitute.  However, if you are anti-fluoride, this will apply as well.
Rating: 3 stars