Pretty Good Whitening Pen: I Recommend!
This was the first ever whitening product I purchased, so at first I was afraid that I wouldn't know how to use it. However, the process is super simple and takes up no more than an extra minute in my morning and night routines. The whitening effect is definitely noticeable if you consistently use this product, it took me about a week to notice a significant difference. Only complaint would be the taste; it is definitely not pleasant but disappears very quickly! I am planning on buying this again.
Rating: 4 stars