gloscience.com

I have always had deep stains in my teeth from medication. Trust me, nothing made them even dull. This product did. I've never smiled so much in my life.

Great product - works as advertised

Love my glo! It has made a noticeable difference to my teeth. Most of all I love how easy it is to use. I can still get some work done while I'm "glo-ing." Yay,

Originally the kit was purchased thru the dentist, the 10 vials have a gray rubber applicator. Then I purchased another mouth piece and 10 more vials, the rubber applicator was blue. What is the difference between the two. Tom

i love this whitening kit. i used to use the crest white strips which worked well enough but hurt my teeth. glo works faster and better, and i don't experience any sensitivity. i will definitely keep using it, totally worth the investment.