One reason behind needing to whiten teeth is smoking cigarettes. Nicotine stains teeth as time passes and results in teeth to become dark and boring. A few of the natural toothpaste remedies on this page will help take out yellow cigarette stains from teeth. Hydrogen peroxide can kill microorganisms https://bookmarkuse.com/story16900566/home-remedy-for-teeth-whitening-youtube-fundamentals-explained