Now you can see the proof. Colgate® Total® Proof advanced formula has a unique germ fighting system that adheres to your mouth to help fight problems such as plaque and other gum related problems, non-stop for 12 hours after 4 weeks of continued use. As you brush to break up plaque, the antibacterial toothpaste with its active foam technology transforms from a white paste to a blue foam. It fights bacteria built-up even between brushings giving you the feeling of ultimate clean teeth. The ultimate proof is not in our toothpaste, it’s in your smile.