DANT KANTI PASTE WHAT I CAN SAY IS UR TEETH STARTS SHINNING IN FEW DAYS OF ITS USAGE.ANOTHER VERY GOOD PRODUCT OF PATANJALI. N THE TASTE IS QUITE GOOD NOT LIKE ANY OTHER AYURVEDIC PASTE .MAY WHITENING TOOTHPASTE USE CHEMICALS WHICH ARE NOT GOOD FOR TOOTH ENAMEL. BUT DANT KANTI IS FREE OF LL THESE CHEMICALS N I CAN STRONGLY RECOMMEND THIS PRODUCT IF UR LOOKING FOR A PASTE WHICH CAN WHITEN UR TEETHS WITHOUT EFFECTING UR GUMS