Smilepen Whitening Gel, set of gel whitening pens (3x 6 ml)The Swiss brand SwissWhite has developed home whitening Smilepen with clinically proven effects. A big advantage, compared to the traditional whitening gel in a form, is the easy and precise application of the gel using a pen with a brush. The gel with this composition is designed to lighten tooth enamel using a wireless LED accelerator that has diodes in the blue spectrum. The Smilepen Whitening Gel set contains 3 x 6 ml whitening gel pens.