Whitening toothpaste only lifts very light surface stains. Over-the-counter strips use a lower concentration than in-clinic treatment. Professional in-clinic whitening is the only method that reliably shifts a tooth's underlying shade — often 4 to 8 shades lighter in one session.
The Truth About Teeth Whitening: What Actually Works
Whitening toothpaste, strips, or in-clinic treatment — what genuinely brightens your smile.