This paste is very effective for curing the teeth problem but I am afraid to continue as this paste is of pure chemicals. Please refer below for the nature of composition of toothpaste:
Black Mark - Pure Chemical
Red Mark - Natural+ Chemical Composition
Blue Mark - natural+ Medicine
Green Mark - Natural
The above marks are on the bottom of the paste container. Its true that this paste is one of the bests but scared as the chemicals could be the carcinogenic or could harm the oral skin. But I am not sure about the side effects. can an expert post the review for the chemical effects.