Tooth whitening for summer...
I've been using gosmile and it helped to whiten about 4 shades, then I saw people on the health forum say that the pro-dental crest supreme strips are 80% stronger than the store bought brands. Gosmile is 6% and the cws pro-dental supreme are 14%.
The gals were saying that if you are really sensitive to just go with gosmile, but if you aren't and want really white teeth, to use a two week supply of the cws supreme.
You have to get them through a dentist but the site that is most recommended on the other forum was dentalwhitestrips.com They also have a combo pack where you can whiten with the strips and then maintain with gosmile. It seems to be the best price I've found. Let me know if anyone sees this combo pack anywhere else.