Baking soda

I will use baking soda instead of hair shampoo and to eliminate odor from my vibram five fingers.

We can consume it and often use it in baking breads, cookies, and cakes. I am a little hesitant to use something that is used for cleaning cups and clothes in my food, and yet...?

Sodium bicarbonate (NaHCO3) has been known to be used in first aid, in treating scalding, to prevent blistering and scarring with instructions to cover the scalded area with a liberal layer of sodium bicarbonate and water paste and seek medical assistance. This is due to the endothermic reaction that occurs between sodium bicarbonate and water and sodium bicarbonates mild antiseptic properties.  Sodium bicarbonate can be used as an exfoliant. Its particles are rounded and fine in texture, making it both effective and gentle on the skin. Using baking soda as an exfoliating scrub removes dead skin cells, which can be discolored from scarring.
Sodium bicarbonate is also used as an ingredient in some mouthwashes. It works as a mechanical cleanser on the teeth and gums, neutralizes the production of acid in the mouth and also acts as an antiseptic to help prevent infections.

Baking soda is commonly added to washing machines as a replacement for softener and also to remove odors from clothes. Sodium bicarbonate is also effective in removing heavy tea and coffee stains from cups when diluted with warm water.