Crest teeth whitening strips are thin, flexible strips coated with a whitening gel that contains peroxide-based ingredients. These ingredients actively break down stains on your enamel and help restore a brighter smile. When you use crest teeth whitening strips consistently, they penetrate below the surface to remove years of discoloration caused by coffee, tea, smoking, and other lifestyle habits. Crest 3D Whitestrips are especially popular because they use advanced seal…