I admit it -- I use vinegar for underarm deodorant. I have a spray bottle that I use to spray the vinegar on each morning. I also spray it on after I shower even though I've just shaved and it stings for a minute. (call me crazy).
Good question -- will you stink of vinegar instead of stinky pits?!?! Adding a few drops of tea tree oil to the vinegar seems to minimize the vinegar smell while it's wet and likely helps to keep the bacteria at bay. Once the vinegar has dried you won't be offending anyone with either smell.
My reasons: health, finances, the environment and it works better than any natural deodorant I've tried!
~❀~ Chelsey ~❀~