Did you know ...the outer skin of your armpit is acidic, with a pH of around 5.5? Now you know!
Baking soda has alkaline properties, so if not used in the proper formulation, mixing a highly alkaline deodorant with an acidic surface can cause a chemical reaction! So, when you're using a baking soda-based deodorant, and you experience rashes, redness, and burning, you are experiencing an undesirable chemistry experiment. Try a deodorant without baking soda and be worry-free.