Paste hi Nahi, Daanto Ka Poshan! Our teeth lose calcium every time we eat sugary foods and get weaker over time. Colgate Strong Teeth has a unique Calcium Boost + Arginine formula which restores natural calcium back to your teeth and nourishes them. Resulting in 2X stronger teeth vs usage of regular toothpaste. Colgate Strong Teeth toothpaste also helps prevent cavities, whitens teeth, and freshens breath with regular use.