How do I make a teeth whitener?

baking soda and peroxide will work - make a paste and brush with that at night.

Charcoal is messy, but it works well. https://wellnessmama.com/3662/whiten-teeth-naturally/

CREST WHITENING STRIPS WORKS WELL, DON'T USE THEM ON THE INSIDE OF YOUR TEETH OR REALLY THE BOTTOM TEETH OR ON YOUR GUMS NO ONE SEES THEM PER MY DENTIST...

HI Lillian,

The baking soda & peroxide will work, but don't use it every day. The same with the charcoal. If you use it daily, you run the risk of thinning the enamel on your teeth and you don't want that to happen. Wishing you the best.

Another vote here for baking soda & hydrogen peroxide

If you are going to use peroxide on your teeth, switch to a sensitive toothpaste. Minimize teeth stains by either not drinking tea & coffee or drink through a straw. Whenever you eat staining food, brush soon afterwards. The Dollar Tree carries a teeth whitening pen that works very well. You can carry it around with you and just apply a couple of times a day. Remember whatever you use, don't eat or drink for at least 30 minutes afterwards.

lemon juice and baking soda.........

Hi Lillian - This is a homemade tooth powder that we use that also helps to whiten teeth. Hope this helps! Hugs, Holly

https://pinkfortitude.com/tooth-powder/