Born with a 95% deviated septum, the SLS in modern toothpastes actually gags me sometimes. Tom's and Trader Joe's natural tooth pastes are much less foaming, and do a good job.. When I was young Kolynos, Colgate , Py-Co-Pay and Calox were still sold , and I used them all. But out of all the old tooth powders, Pepsodent was my favorite, it was loaded with strong peppermint , really a fresh blast of delicious mint...I recently obtained from Russia 2 all natural tooth powders, one with a mint as strong as the old Pepsodent, and another with light mint clary sage ,and anise, which so far has eluded my taste buds. They both work great, rinse super easy, and do not foam , no foam at all !...I like them ,great taste, mouthfeel and tooth feel ,
very refreshing.