Go Smile: B1 Whitening System doesn't produce as dramatic results as professional teeth whitening. It also takes longer than other over-the-counter formulas to see results. That being said, the ampoule brush-on whitening system is extremely easy to use and can be applied anywhere. Furthermore, Go Smile: B1 has less sensitivity issues than other popular whitening treatments.
For less dramatic whitening. Users say Go Smile: B1 Whitening System doesn't whiten teeth as dramatically as other formulas, probably because it only contains 6 percent hydrogen peroxide -- many of the top-rated formulas contain 10 percent. Popping the system's ampoules and then brushing the formula on to individual teeth activates the formula. Experts also suggest that because the gel dissolves on its own, it may not be as effective as Crest 3D White Whitestrips Advanced Vivid (*Est. $40) because saliva can wash away the gel before it has taken effect.
Some testers, however, say they see immediate results with Go Smile. One user at MakeupAlley.com says, "upon first application, my teeth were a shade whiter." Others say that it only produces slight improvement over time and some see no results at all. Editors at TeethWhiteningReviews.com say, "This system is best suited for teeth that are already white and need some maintenance, or if you only need to whiten a few individual teeth."
Use them anywhere. Go Smile is designed to be used once in the morning and once in the evening for 10 days; it is a good thing that the system's ampoules shine in the convenience department. Editors at Real Simple magazine say the formula is "a hit with impatient testers" because it only takes two minutes to apply, and it doesn't have to be removed. Users at MakeupAlley.com and TotalBeauty.com like that the whitener can be used anywhere, while doing anything. One explains, "I whiten in traffic now! It's super easy to use."
Reviewers also like that you can use the ampoules to target specific teeth without having to treat your entire mouth. The only downside is that you have to wait 20 minutes before eating or drinking, but that is essentially the same for all teeth whiteners.
Gentle. The low dosage of hydrogen peroxide makes Go Smile: B1 Whitening System a relatively safe teeth-whitening option. The only thing that could make it safer is an oral exam by a dentist who then approves whitening treatments.
Furthermore, both experts and users say the formula causes little to no tooth sensitivity. One user at MakeupAlley.com explains, "When used as directed there's been NO sensitivity for me." Evelyn Perreault, a dental hygienist, explains in an eHow.com video that she has had no reports of sensitivity in patients who have used the formula.
Review Credibility: Very Good Nearly 100 reviewers at MakeupAlley.com give Go Smile B1 Whitening Kit an overall score of 3.3 out of 5 stars. Reviewers have mixed opinions about how well the formula works. Some saw immediate results while others only saw a slight difference after completing the course of treatment. Most say it causes little to no sensitivity.
Review: Go Smile B1 Whitening Kit, Contributors to MakeupAlley.com, As of August 2012
Review Credibility: Good More than three dozen reviewers at TotalBeauty.com weigh in on Go Smile: B1 Whitening System, giving it an overall rating of 7.5 out of 10 stars. While users have mixed opinions about how well it whitens teeth, most say that it doesn't cause any tooth sensitivity.
Review: Go Smile B1 Whitening System Reviews, Contributors to TotalBeauty.com, As of August 2012
Review Credibility: Good Editors of TeethWhiteningReviews.com discuss Go Smile: B1 Whitening System. Included in the discussion are details of how the product is used and what kinds of results can be expected. Editors say the system is best for teeth that are already white and need maintenance. The system is not rated or compared to other formulas. Several user reviews are also listed, but they are for various Go Smile products and it's often hard to determine which products are being reviewed.
Review: Go Smile, Editors of TeethWhiteningReviews.com, Not Dated
4. Real Simple
Review Credibility: Good Real Simple magazine calls Go Smile: B1 Whitening System the "best tooth swabs," saying that they are fun and easy to use. Testers say they can see immediate results.
Review: The Best Teeth Whiteners, Katie McElveen, July 2007
Review Credibility: Good Evelyn Perreault, a dental hygienist, explains how to use Go Smile whitening ampoules. She explains that the formula isn't activated until the ampoule is squeezed. The design of the ampoule allows you to target specific teeth, and the lack of preservatives eliminates sensitivity issues.
Review: Teeth Whitening Ampules, Evelyn Perreault, Not Dated