I heard about these zinc lozenges a few years ago and thought it would not hurt to give them a try. I am a person that normally gets a cold at least twice a year. I have not had a cold since starting to take these! If you take them as soon as you feel a cold coming on, they are supposed to eliminate the cold completely or at least limit the symptoms of the cold. I take it as soon as I feel what I call the "hot nostril." I always get one nostril that feels warm right before I get sick. When I feel this, I immediately pop a lozenge in my mouth. To date, this has stopped all the colds. I firmly believe this to be real. Even if it is mind over matter, I do not care as I have not been sick in a few years now. My partner also swears by them, as I got her hooked. I also have helped co-workers and family with these things. I would recommend these lozenges to everyone. They really do work. I will warn you though, they are not very tasty. They say they are cherry flavored, but they taste very medicinal.