# Does teeth whitening damage your teeth?

Source: https://thelocaldentist.co.uk/answers/does-teeth-whitening-damage-your-teeth/
Updated: 2026-07-13

## Quick answer

Whitening done or prescribed by a GDC-registered dentist or hygienist is considered safe for healthy teeth and gums, with temporary sensitivity the most common side effect. The risk comes from unregulated sources — beauty-salon whitening or high-strength products bought online — which are illegal in the UK and can burn gums or damage enamel.

## Key facts

- Dentist-supervised whitening is considered safe for most healthy adults
- Temporary tooth sensitivity and gum irritation are the most common side effects
- Whitening products above 0.1% hydrogen peroxide may legally only be used by dental professionals
- Beauty-salon or non-dental whitening is illegal in the UK, not just unregulated
- Unsupervised high-strength products can burn gums and damage enamel
- A dental check-up before whitening rules out decay or gum disease that whitening could worsen

Editorial content from The Local Dentist — not clinical advice.