The story of Listerine begins in 1879. The product was discovered by a physician, and towards the end of the 19th century it started to spread in dental clinics all over the American continent. Listerine has always been proven to be good for your teeth, but from time to time there have also been rumours about other positive effect; for example, it was claimed that the product could cure colds and eliminate dandruff. However, non of this functions are scientifically proven. But the Listerine products are leading within the field of dental hygien – and that's a fact.