Whiten teeth while you sleep. In as little as a week (two weeks of treatment is recommended for best results), these optic white teeth whitening pens whiten your teeth up to two shades and have 15X more whitening power in 1 treatment versus brushing alone, unlike other tooth whitening pens. The whitening pen pack includes one tooth whitener pen and one overnight stand for easy storage next to the sink or countertop. Voted the Best New Teeth Whitening Treatment by Consumers* *Best New Product for Teeth Whitening Treatment in a 2022 Brand Spark survey.