Watching the TV ad and reading the reviews I opted for Colgate sensitive clove essence since I had a problem in my canine region of my tooth. Used for few weeks with hoping it would reduce the pain and sensitiveness, when I found no result again I continued for a month but the result was not satisfactory it remained the same. Then I discontinued using it and tried with some ayurvedic which was satisfactory. The only best part of Colgate sensitive is the flavor of clove which just refresh my mouth and shines the teeth good enough. There is nothing much to expect from this paste and price is too high.