20. To brighten your armpits

Dark armpits are one of the most common problems that women have. It's especially important if you plan to visit the beach soon. It's easy to fix this problem. Baking soda mixed with a little water can be applied to your armpits. It will take a little more patience as you need to wait about 30 minutes before you can wash it off. This process is worth the wait. You'll have to repeat this process regularly if you want your armpits to be even whiter.