Yes, whitening toothpastes can work, but they’re generally more effective at removing surface stains than changing the underlying color of your teeth.

Here’s a breakdown of how they work:

• Abrasives: These ingredients, like silica or baking soda, help to polish your teeth and remove surface stains.
• Bleaching agents: Some whitening toothpastes contain mild bleaching agents like hydrogen peroxide or carbamide peroxide. These can help lighten deeper stains.

However, it’s important to note:

• They might not be as effective as professional whitening treatments. For more dramatic results, you might consider options like professional teeth whitening or whitening strips.
• They can be abrasive. Overusing them can damage your tooth enamel.
• They might not work for everyone. If your teeth are naturally yellow or stained, whitening toothpaste might not be as effective.

If you’re considering using a whitening toothpaste, it’s a good idea to consult with your dentist first. They can give you personalised advice and recommend products that are right for you.