This is a review of Go Smile On The Go Teeth Whitening Pen which I was sent to try out in exchange for this review. The thoughts in this review are mine and my families and no, one else. I have noticed Charlie’s teeth are turning yellow no matter how many times he brushes them. Using the whitening toothpaste I purchased hasn’t helped much. So I was at a loss until I found Go Smile and saw Go Smile On The Go Teeth Whitening Pen they have. I contacted Go Smile and was sent Go Smile On The Go Teeth Whitening Pen to review. I was so glad as David…