Drysol
"So in high school over ten years ago I started to sweat really bad under my arms. It was super embarrassing to go through high school with this issue. After trying over the counter products and home remedies I gave up. So my Dr at the time recommended Drysol. I used it for just a few weeks and it worked so good. But then after a few months I noticed my armpits darkening. So I stopped using it. Now about 15 yrs later I've tried so many things to lighten my armpits and nothing works. This stuff did 100% cure my sweaty armpits and I can now freely wear shirts without the sweat marks. But it burned me so bad that I have dark scars for life and still can't walk around freely with tank tops. I guess you can't win them all."