Should I Do Whitening Strips Before Or After Brushing?
Most dental guidance suggests brushing before applying whitening strips, but waiting about 30 minutes between the two steps reduces gum irritation and helps the strips adhere evenly. Brushing immediately after whitening is generally discouraged, since it may disturb the enamel surface and increase sensitivity. The better sequence depends on your oral health, how sensitive your teeth are, and the specific product instructions.