Gem Teeth Whitening Pen PAP is formulated with PAP ... Fortunately, many at-home whitening kits now include safe amounts of hydrogen peroxide, and others are formulated with alternative ...

They're small crystals, diamonds, or charms that are literally glued to the enamel of your teeth. Tooth gems are akin to grills, popularized by African American hip-hop artists in the '80s and '90s.