I was experiencing profuse daily sweating with perimenopause, particularly in the underarm area. I didn't want to leave my house because any slight overheating, exertion, nervousness or excitement would trigger the sweating. I would sweat right through my shirt, fleece jacket, and winter coat. I would then get chilled because my clothes were so wet. I tried many antiperspirants, and they made no difference. I never thought that something applied only once per week could work, but eventually I tried SweatBlock after reading some online reviews. It took a few extra applications during the first week to get it to start working, but it did work. It felt like a new experience to have dry underarms all day. I have been using SweatBlock for over a year, and it has been very reliable. I no longer carry extra clothes or worry about sweating. I would likely be a hermit without SweatBlock!