Gimp is the sweatiest mofo you'll ever ecounter. Man, I used to have to change my shirt 4 times per day due to sweaty pits. Drysol saved my life. I sweat a little bit now in the a.m., maybe the size of quarter on my pits then nothing for the rest of the day. Be careful not to apply too much though. Go light at first, 'cause it itches like a bitch. Try drying your pits with a hair dryer first and then apply the drysol directly to your sweat area of the pits before bed. Do it everynight before sleeping for 2 weeks then you'll only need 1 or 2 times per week touch ups. Avoid taking really long hot baths as it decreases the effectiveness. You don't need a prescription in canada, but it's kept behind the counter. Good luck.