The conversation between human and AI assistant.
What is the most effective method to whiten teeth from cigarette stains at home?
No, I haven't. Which one do you recommend for someone who has never tried any of these methods before?
I would recommend starting with either hydrogen peroxide or whitening strips. Hydrogen peroxide is a common household item and can be found at most drugstores. Whitening strips are also easy to use and can be purchased at most retail stores. It's important to follow the instructions carefully and not overuse any method, as this can cause damage to the teeth and gums.