I did the dentist deal and was pleased. I still have goop left over and can do touch ups if I want. [url="http://www.discusdental.com/consumer/whitening.html"This is the goop. Except is was Excel 2, mint flavor was the only choice I guess Excel 3 has flavours I’m guess is the difference.
I don’t smoke but drink plenty of coffee. Like I said I have goop leftover and have done a 3 day touch up once so far. I got the goop originally 15 months or so ago. The goop won’t keep forever though. $300 CDN but I’ve seen it for less recently.
I’ve used the trays with the whitening stuff for many years. I have very white teeth - it hurts a bit if you have sensitive teeth, though. My dentist doesn’t charge me for refills of the whitener - I believe it goes for around $40 for a 3-month supply.
FYI, some people can’t stand the trays - you should try one out first at night before you spend the big $$.
Free refills? I hadn’t even thought about asking for refills DUH ! I doubt they’d be free for me but I’m sure it’s the trays that are the bulk of expense. I’ll have to ask.
I tried the $50 home kit with a tray and gel and was really disappointed. Tried all the $8 toothpaste brands too.
I think it’s the same ingredient, but like 3% instead of 5-6% peroxide.
I actually tried swabbing one tooth with Clorox and keeping my mouth open 5 minutes then rinsing (not smart at all!) but nothing happened.