i've done zoom whitening about 2 weeks ago, so i'm thinking i'll do my next one at least a couple of month later. it says i have to use it within 180 days. does that mean i have to do the whitening and the touch up within 180 days from the purchase date?
Sooin L. asked on Jan 12, 2014
Please schedule your first appointment by the expiration date.
Christina B. from Groupon replied on Jan 13, 2014