Aluminum chloride hexahydrate
"Hyperhidrosis basically has controlled my life for as long as I can remember, and I am a senior in high school right now. My first memory of excessive sweating goes back to eighth grade right after I took a test, and I saw on my bright blue shirt a small but obvious ring of sweat. My sweating requires a trigger, generally anxiety, stress, or if I am put on the spot. Therefore, when I am at home with my family I am completely dry and there is nothing wrong. Anyways, I've been wearing baggy stuff and black shirts for the last three years, and that works to cover up the sweat, but not the smell. I finally told my mom, she called my doctor and prescribed me to hypercare, I wore a white shirt to my practice and zero sweat. Life saver."