It’s worth considering a toothpaste that includes ingredients like baking soda and hydrogen peroxide. These bleaching agents can aid in reducing the appearance of stained or discolored teeth.

However, be cautious not to overuse these products, as excessive application can harm your teeth. The American Dental Association recommends a hydrogen peroxide concentration of no more than 3.6%, while Colgate advises that a concentration between 3% and 6% is safe for use.
Whitening strips and trays have gained popularity as a quick solution in recent years, but it’s crucial not to overuse them.
Toothpaste containing charcoal can also be effective, but like whitening strips, overuse can lead to enamel damage.
Foods to avoid
Coffee and milky tea are obvious culprits when it comes to staining your teeth. However, they’re not the only foods and drinks that can contribute to a yellowish hue on your teeth.

Fizzy drinks, citrus-based beverages, and red wine can also lead to staining because of their sugar content and/or acidity, which can be abrasive on your teeth.
Foods like curry, tomato-based sauces, and berries may contribute to enamel erosion.
We’re not advising you to survive solely on water and bland vegetables—that would be quite dull—but the important thing to keep in mind with any food is moderation.
Avoid overindulging in sugary foods, prioritize good oral hygiene, and occasionally use whitening toothpaste or strips with hydrogen peroxide, and your teeth should stay in good shape.