do i brush my teeth after whitening strips

It's generally recommended to brush before using whitening strips. Brushing beforehand removes plaque and food debris, allowing the whitening gel to make better contact with your tooth enamel for more effective results.

After using whitening strips, you should rinse your mouth thoroughly with water to remove any residual gel. Brushing immediately afterward might irritate your gums or cause patchy whitening if the gel hasn't been completely rinsed away. Wait at least 30 minutes to an hour after removing the strips and rinsing before brushing your teeth.