SENSO Gel is a desensitizing tooth gel that gives instant relief with a triple action combination. The Fluoride helps fight cavities by strengthening the tooth enamel. Tooth sensitivity is caused by the exposure of the underlying tooth dentin, which carries a rich nerve supply. Potassium Nitrate forms crystals inside the dentine tubules thus blocking the nerve sensation and reducing sensitivity. Triclosan is an anti-bacterial and anti-septic agent that inhibits the growth of bacteria.