SmileDirectClub teeth whitening gel pens contain the same enamel-safe whitening agent used by dentists – for less than half the cost. The no-mess brush applicator lets you paint the gel directly onto your teeth, and the patent-pending 20-LED accelerator light boosts its whitening power. Use for just a week – once in the morning and once in the evening – and enjoy whiter teeth for 6 months. • 4 pens for 6 months of whitening • 1 full week of treatment • Results last up to 6 months • Up to 9 shades whiter in just one week* • Same enamel-safe whitening agent used by dentists • Whitens with low to no sensitivity • Helps remove years of tough stains • Both iPhone and Android users require mating with the chipset provided in the case. It is recommended that the phone remains on while in use *Average results after 1 week when used as directed. Results may vary. * 4 pens for 6 months of whitening * 1 full week of treatment * Results last up to 6 months * Up to 9 shades whiter in just one week* * Same enamel-safe whitening agent used by dentists * Whitens with low to no sensitivity * Helps remove years of tough stains * Both iPhone and Android users require mating with the chipset provided in the case. It is recommended that the phone remains on while in use * Average results after 1 week when used as directed. Results may vary.