I've used professional teeth whitening products in the past and I've found the Zero Glow Teeth Whitening Kit more than comparable!
What I love about it? I drink both black coffee and green tea, daily and noticed my teeth where getting stained. (Well, they weren't until started drinking the green tea. That stuff is wicked!)
Anyway, I used this kit for 10 days straight (with the blue LED light at each use) and after 10 days my teeth were crazy white again!
I use the doTERRA OnGuard Whitening Toothpaste 2x a day for keeping the deeper staining at bay!
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