The tiny cellulose particles clean the teeth actually more effective (When used regularly) and with a package to get really many weeks back.
The taste is the same as toothpaste, only the excessive foaming is missing, because the artificial flavoring and foaming agents are missing.
So if you can not be put off by the somewhat unusual procedure of Zerkauens, can find a super alternative to toothpaste.
After 1 week of regular application is actually smoother and brighter teeth. From bleaching but you can not speak;)