People have tried a lot of natural remedies over the years to make their teeth whiter. Unfortunately, most of them aren't as effective as the treatment offered by dentists. A solution of baking soda may have some effect in removing stains, as can a weak solution with peroxide, but both can cause problems with the gums so you should learn more about them before trying.

Keeping teeth naturally white is more often a matter of not having too many of the foods and drinks that stain the teeth, such as coffee and red wine, and eating lots of crunchy vegetables and fruits that are good for them and may reduce stains.

Many toothpastes claim to whiten your teeth, and again they may have some effect but it will be limited. if you want something that really makes a difference you probably have to think about treatment - but please only think about treatment from a registered and qualified dentist, as some of the treatments being offered are either ineffective or actively harmful.