My teeth are geneticaly brown but i really want them whiter i've looked online and they said use baking soda and peroxide i don't know if it will work?

Staged response: Try the most conservative ideas first and ramp up as needed. First remove extrinsic stains by getting your teeth as clean as possible. Next, explore bleaching options involving strips or other otc whitening solutions. Next would be dentist-supervised bleaching options that are more powerful. If none of these are working or appropriate, you can explore restoratives such as veneers or crowns.

Genetically ?: Genetics can affect the shade of your teeth but from the way you stated your question, I am concerned that possibly you may have staining from taking tetracycline antibiotics as a child. This would not be genetic but will make your teeth grey, brown or in that range but unacceptably dark. Bleaching may help but it will be a long term endeavor and will need to be under the supervision of your dds.

Lumineers : Brown staining typically is from antibiotics taken in youth. My most successful cases are those with veneers at lumineers. The difference between stained brown teeth and beautiful white teeth is amazing. My patients who have made this change have had such a great result in their smile and unexpected other areas of thir lives!

Maybe but rare: You may have staining from trauma or perhaps tetracycline staining. Sometimes those things may work but more than likely more invasive techniques may be necessary such ad prescription bleaching or restorations such as bonding, crowns, or veneers.

Maybe?: Baking soda is an abrasive to remove any surface stains and peroxide is an acid that will clean a little deeper. However with genetically brown teeth, more than likely the pigment goes much deeper than baking soda or peroxide can fix. Most likely you will need to see your dentist for a cosmetic evaluation, possibly porcelain veneers.

Whitening?: All teeth are potentially bleachable, but the results achieved can vary from tooth to tooth. This may depend on whether the discoloration is "deeper" such as in tetracycline stained teeth, root canaled teeth. Peroxide and baking soda is not your best option. Your dentist can determine whether some form of tooth whitening can help or whether cosmetic dentistry can provide a better outcome.

Disagree: Those products might help with cleaning your teeth but do not necessarily whiten your teeth. First you need to see a dentist to evaluate your teeth. You might just need a good professional cleaning to get rid of any plaque and stain on your teeth. Then, if you are a good candidate, he can recommend the right whitening procedure for you.

Possibility: Otc products do not effectively work well on inherited dark shade of teeth, ie. Tetracycline stains, or dark teeth caused by high fever when young. The best product is known as kor whitening, which only a dentist can provide. The other alternative are porcelain veneers or porcelain crowns to mask dark shade of your teeth.