Stay home and whiten with our most advanced formula for faster whitening results than ever before. Developed by leading dentists, Smilie delivers a professional-level whitening experience, while being gentle on enamel for those with sensitive teeth and gums. Each pack contains 6 pre-filled gel whitening pens for up to 60 treatments. Trusted by over 100,000 customers. As seen on Sunrise and in Vogue, Body & Soul, News.com, Pedestrian TV and Popsugar. Feel confident knowing you'll get dentist quality results, backed by our 100% money-back guarantee.