Unfortunately, I didn't use all of the strips within 10-20 days. You can use 1 or 2 strips a day depending on how fast you want your teeth to whiten.
I would only use 3-5 strips per week every...
About reviewer (12 reviews)
Age19-24
SkinAcne-prone, Fair-Medium, Warm
HairBlack, Other, Coarse
EyesBrown