4. Turmeric.

Turmeric is great for just about everything, including whitening your teeth. Turmeric has natural astringent properties, which helps tighten gums and remove plaque from the teeth. It has the same abrasiveness as activated charcoal, so it helps scrub the plaque from your teeth.

5. Coconut oil.

What can't coconut oil do? Among its many uses is as an antibacterial agent. Coconut oil has been repeatedly proven to reduce gingivitis and plaque caused by bacteria, which helps lead to a brighter smile and healthier mouth. Simply swish a little cold pressed coconut oil around in your mouth for 5 minutes once a day. I usually do it at night before bed.

6. Hydrogen peroxide.

HP works like a charm, but it comes with a warning. Do not swallow it and only use it once or twice a week. HP works great at reducing bacteria in the mouth and getting rid of surface stains on the teeth. Mix 1 part HP with 2 parts water. Never rinse with it at full strength.