I use Crest Pro-Health, from the grocery store. It also happens to be what my dentist hands out in their goody bag, but she did not know about the difference b

I use Crest Pro-Health, from the grocery store. It also happens to be what my dentist hands out in their goody bag, but she did not know about the difference between different forms of Fluoride when I brought it up at a check-up. Probably picks the goody bag contents based on who gives the best kickbacks/perks. I'm sure that there are other studies out that that compare the active ingredients in isolation rather than as a part of a commercial preparation, that's just the first one I came across that looked to be from a reasonably independent source, rather than a disguised advertisement.