Is this a one-time procedure? How do the results compare to that of Zoom! whitening?
Elizabeth M. asked on Oct 11, 2012
I'm very sorry that we were unable to get to your question! Since this Groupon is only available for purchase until midnight tonight, I suggest contacting the merchant directly at (214) 217-4411. Thanks for your interest!
Kelsey W. from Groupon replied on Oct 14, 2012