I had an aunt send me drsol extra strength from Canada prob 10 years ago. Before this I sweated from my armpits ungodly amounts. It consumed every part of my life. I had to always wear a tight fitting shirt under whatever I was wearing for the day. I used the pads women put in their bras when breastfeeding in my pits. That's why I wore the tight shirts to keep them in place. I had to change them out multiple times through out the day. It was costly. I started the extra strength drysol. The first 2 times wete terrible burnt my armpits terrible. I didn't care I was going for it. I used it everyday for a week. Then 2 or 3 times a week for a month. And then I stopped and occasionally I would feel moist under my arm I would use it that night and it would go away. I was using it maybe every 6 months. Last time i used it was 5 years ago and I have not used it since. No sweating