An exclusive Pro-Argin formula with a technology that dental professionals use to provide instant and lasting sensitivity relief. Pro Argin technology helps to seal and repair the sensitive areas of teeth. Sealed channels protect against stimuli caused by hot, cold, Sweet or sour. Sealed channels protect against sensitivity for instant relief, and with regular use provide lasting protection to prevent sensitivity from coming back. Exposed channels' that lead to tooth's center can increase your chances of sensitivity. With regular use, this product helps to strengthen gums.