Founder and CEO Perry Louis Fields produces a line of oral care products, including a tooth powder that’s made her swear off commercial pastes.

Fields instructs customers to spit after brushing, — but not to rinse, since she says tap water is quite often acidic, just like the enamel-decaying foods many people love. The powder helps restore the mouth to an alkaline state. “If you are using our tooth powder a couple of times a day, you should get just the same kind of benefit without having to worry about the health effects of using a toothpaste,” says Fields.