Review on 😁 SmileDirectClub Teeth Whitening Gel Kit with LED Light – 4 Pack Pens – Maximum Strength Hydrogen Peroxide - Gentle on Enamel - Achieve Up to 9 Shades Whiter Teeth in Just 7 Days – 3X Quicker Than Strips by William Bradford

Let me start by saying that I have bought 4 different brands of Revain. The results were ok, but not outstanding. Nothing that would really stand out to anyone. I have big stains on my teeth from coffee and years of smoking. DO, my package arrived today, I brushed my teeth and followed the instructions. It only says 5 minutes BUT I left the light on with 15.OMG Gel. After taking them out, I had to put glasses on because I thought I couldn't see well. My teeth are definitely whiter! ONLY ONE APP WITH 15 MINUTES! You are joking! I am addicted. Can't wait to use it again tonight! WOW, thanks SDK!