I use a whitening tooth-paste as a teeth whitener about 1-2 times a weekI cover a small piece of paper towel with the tooth-paste and then lay it over my teethAnd just to keep the towel from dissolving I take some aluminum foil and cover it over thatThen I let it sit in my mouth for about 10 minutesIs that bad? Just the fact that I have aluminum foil in my mouth? I starts to taste really weird, but it works and I don't have anything else to hold the toothpaste in my mouthIs this okay?
Carrefour, Tamimi, SacoOh and definitely on hardware stores.
