I wore Crest Whitestrips for 14 Days and here's what happened.
Should You Brush Your Teeth After Using Whitening Strips?
How to Apply Crest 3D White Strips: 11 Expert-Backed Tips
This is actually crazy. 1. Stained teeth :( 2. After brushing with active charcoal. :| 3. One level 5 crest white strip for max time. :D … | Zähne, Aktivkohle, Kohl