Is it uncommon for people to need 2 sessions to whiten teeth? I am not sure if I should buy 1 or 2. Thanks! Kim
Kim S. asked on Dec 2, 2012
Results depend on the individual. To discuss your history and options, please reach out to the merchant directly at (585) 467-5450. Thanks!
Kelsey W. from Groupon replied on Dec 3, 2012