All tooth whitening products, that often contain harmful chemicals can be bought in stores and pharmacies. Therefore, the use of natural products would be a much more efficient method, more accessible and cheaper.
For example, you can put coconut oil in your mouth or apply it to your teeth. Repeat this procedure several times a week, and you will notice positive results with regard to bleaching and removing dental plaque.
Here is a recipe for healthy oral hygiene:
half a glass of fresh rosemary
1 cup of fresh mint
2 glasses of water
Put the water to boil, then add the herbs and cook for another few minutes. The mixture should then remain for a few minutes and cool. Rinse your mouth with a cold mixture.