Do you need to brush your teeth before eating in the morning after using the pen? June 17, 2021 13:17 Updated We recommend brushing your teeth before eating as the formula will still have a layer of film on your teeth. Related articles Am I allowed to eat or drink after application? Is there an interval in between treatment cycles? How much time should I wait to go through the whitening cycle again? Can this product replace professional dental cleaning? What is the whitening ingredient in the pen? How does it work? Does the Colgate Optic White Overnight Teeth Whitening Pen contain any animal-by-products? Comments 0 comments Article is closed for comments.
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