What LED Light Does in Teeth Whitening
LED light is sometimes used alongside whitening gels in dental offices and home kits. The light is meant to activate or speed up the whitening agent, usually hydrogen peroxide or carbamide peroxide.
Does LED Light Actually Whiten Teeth
LED light alone does not whiten teeth. The whitening effect comes mainly from the chemical action of the peroxide gel. Studies suggest that LED light may slightly enhance the short-term results, but the change is often small and temporary.
Safety and Realistic Expectations
LED whitening is generally considered safe when products are used as directed. However, overuse can cause tooth sensitivity or gum irritation. For reliable results, it is best to follow product instructions and consult a dental professional.
Learn more about how teeth whitening works from the American Dental Association at ada.org/en/consumer-topics/oral-health-topics/teeth-whitening.
