Now that's a no-brainer.
After one week of whitening with 4 pens, your results will last 6 months. Features: WHITENING PENS 4 whitening pens for 6 months of your brightest bright Only 5 minutes, twice daily for one week Helps remove years of tough stains in just 1 week Same enamel-safe whitening agent used by dentists No-mess brush applicator Fast-absorbing gel Cool mint flavor LED LIGHT Made with the same technology as the lights used by dentists Hands-free, smartphone-powered LED light (works with iPhone and Android) Portable and easy to use – brighten wherever, whenever Accelerates the power of our bright on premium teeth whitening Low battery consumption. No clean up? Plus, the no-mess brush applicator keeps gel off your hands and on your teeth, where it starts working right away. SmileDirectClub Smile Direct Club bright on Premium Teeth Whitening Kit - LED Accelerator Light and 4 Whitening Pens - 1 | CVS Our kit also includes a patent pending 20-LED accelerator light to boost the power of your bright.