Well just like I promised in this post, I'm back with my Colgate challenge results. I've been using Colgate Optic White Toothpaste for just over 2 weeks and a little different has been noticed. The first shot is the before. I tried to get the same shot twice to show the results but my photography is very poor.
In the end I will be sticking with baking soda. It gets teeth whiter the fastest and is the cheapest. Simply fill a small container with baking soda, dip your toothbrush in and go at it!
Just to note this post is my personal option only.