A couple of nights ago, I bought some toothpaste. At the risk of veering off into “in my day, we used sandpaper. And we liked it!” territory, there’s a ridiculous variety of toothpaste.
If you just consider Crest, there’s Cavity Prevention, Multicare Whitening, Multicare Whitening, and Half-Caff Decaff Mocha with a Twist of Lemon. OK, the last one isn’t real, but it seems silly.
Why? Because when I look at the active ingredients, all of these different toothpastes have stannous flouride as the only active ingredient–and usually at the same amount (w/v%). So how are all of these toothpastes different? I didn’t see anything else in the inactive ingredients that was different (although maybe I missed something).