As you know by now, baking soda is a natural deodorizer. It makes sense that you may want to use it as a natural deodorant on your skin. Some people just sprinkle the substance on their armpits to avoid being stinky. Note: it won’t work as an antiperspirant.
For some people, baking soda alone may be too harsh if they have sensitive skin. However, it can be combined with other ingredients to make a good deodorant. This is a great solution if you’re in a pinch and run out of your regular product.