I want to try some kind of whitening kit.
Now I checking 4 kits.
One of that,I want to try is Crest 3DWHITE WHITESTRIPS PROFESSIONAL EFFECTS.
This produt is enamel safe,just put on strips not to use mouthpiece.
Its sound really good but the price is not good.
The other products are use mouthpiece and the price ress than Crest.
I think my mouth is pretty small so the mouthpiece is not fit for me.
So I was pondering what I should do.