Question: how long do you have to wait to eat after using crest whitestrips?
Answer: Crest's most advanced whitening strips, Supreme FlexFit & Professional Effects, keep your teeth whiter for 12 months. How long after whitening teeth should I wait to eat? Eating after whitestrips will not affect results. There are no eating or drinking restrictions after using Crest 3D White Whitestrips.