Does help some, did not create sensitivity
Overall a good product.  Used for two weeks, two times a day and saw some improvement of whitening but not what I had hoped for.  (I am a daily tea drinker, so white teeth is a challenge.)  Was easy to use, did not create sensitivity, and was pleasant to the taste.  It may work best for maintenance after using some other type of whitening regimen or kit.  Yes, I would recommend.
Rating: 4 stars