Aluminum chloride hexahydrate
"So I was a lil weary when I was prescribed this. I had tried a bunch of other "Clinical Strength" products and nothing really worked. But I gave it a go anyway. I have to say I'm amazed. The first night I used too much and it burned, but the next day I had not a drop of sweat under my arm. Nothing....dry as a bone. I am so glad, this medicine is like a miracle to me."