Do crest whitening strips work on kids?

No, Crest whitening strips are not recommended for children. The American Academy of Pediatric Dentistry (AAPD) recommends that children avoid using teeth whitening products until their adult teeth have fully developed, which usually occurs around age 16. Using teeth whitening products before this time can damage the developing enamel of children's teeth and cause sensitivity, discomfort, and other oral health problems.