First of all, try and quit smoking. That is the best solution as both your lip and teeth color would return to normally gradually with time even if you just quit smoking.
Home remedies you can use:
- Rub lime on your lips to lighten them.
- Rub baking soda or hydrogen peroxide on your teeth. You can mix it into your toothpaste and brush with it for whitening your teeth. Use a fluoride toothpaste to prevent tooth decay.
You might find this article interesting to read - Yellow Teeth-Need For A Makeover.
answered by P P