I really like this patch. I live in the south right next to the water. There is nothing worse than mosquito season down here, not even DEET helps. I lked the idea of a product that does not inhibit your bodies ability to sweat, especially being down here where the humidity is close to 80% all the time. This patch you put one or two on at the beginning of shift and you might get bit once, may be twice but you won't go home feeling like a giant mosquito bite all over. It lasts for over a 12hour shift.