Still waiting!

I received this as a sample. This product is alright, for I am still waiting to see more progress. In the first application, the baking soda is a bit gritty, but it eventually dissolved, the taste at first isn't very pleasant, but I eventually got used to the baking soda flavour. I have been using this product for a little over a week now, and I have noticed a subtle colour change on my teeth. It does take a while to see some progress!