Is at-home teeth whitening safe for enamel?

Yes, when used as directed. ADA-accepted products like Crest have been extensively tested. Avoid overuse — follow the recommended treatment course and take breaks between courses.

How long do teeth whitening results last?

Typically 3-6 months depending on diet and habits. Coffee, tea, red wine, and smoking stain faster. Touch-up treatments every few months maintain results.

Best Teeth Whitening Kits LED 2026