13. QUIT SMOKING
Okay, it’s easier said than done, but tobacco is the number one enemy of white teeth (due to tar and nicotine). By quitting smoking, you will have a bright smile again and your health will thank you!

14. TEE-TREA ESSENTIAL OIL
Also called Melaleuca, tea-tree essential oil is known to treat oral problems (mouth ulcers, abscesses, etc.) and is also said to have whitening properties. After brushing your teeth, rinse your mouth with a few drops of oil diluted in a glass of water or mix a drop of oil directly with your toothpaste and rub gently.

15. GET YOUR TEETH WHITENED AT THE DENTIST
Finally, if after trying all these tips you don’t see any improvement, you can always go to the dentist and have a professional treatment. Very effective, this treatment will still cost you around 1000 euros.