Review on Get a Whiter Smile in Just 1 Week with SmileDirectClub Teeth Whitening Kit - Includes Lip Balm and 4 Gel Pens - Professional Strength Hydrogen Peroxide - Enamel Safe - Up to 9 Shades Whiter! by Doug Daniels

This was a backorder. First, I bought a starter pack of LED lights. After doing the initial whitening, I had such good results that I bought a replacement pack. I know the directions say to do this every 6 months, twice a day for a set number of days, but I've had amazing initial results and instead of waiting 6 months to do a new cycle I'm doing it now alone. once a day. 2-3 days for repairing. Now it's just part of my oral hygiene. I smoke and drink a lot of Diet Coke and tea and Smile Direct keeps my smile white despite the "over-use" of my teeth. (No way am I promoting smoking! - Just sharing my experience). This is a great product.