PROS / The strips are comfortable and fit well onto your teeth.
CONS / There is only a shade guide in the tool package and nothing else.
VERDICT / Crest provides enough support and materials to give you a thorough teeth whitening, but the results are not the best we’ve seen.
Usually the best teeth whiteners come with mouthpieces, but Crest continues to make teeth whitening strips. The strips prove themselves equal to many teeth whitening products with mouthpieces, but there is still a lot to be desired in the overall packaging and results.
We tested the Crest 3D White Whitestrips Professional Effects kit. It has the longest treatment time of any teeth whitening kit we tested, with three weeks’ worth of treatment required for you to achieve results. This would not be as much of a problem if that time period resulted in whiter teeth than any other product, but it does not. It our testing, it only achieved one brighter shade of whiteness in three weeks, which is not very impressive compared to other products that can do two shades in just a few days. There is a lasting effect, and our tester reported having still noticed whiter teeth after ending the treatment. The strips were also snug on the teeth, with no slipping.
There are no sensitivity reducers in the whitening gel on the strips, but our participant reported having felt no pain or sensitivity through the treatment. The strips sometimes touched the gums because of their size, but it did not result in blistering to the gums. The taste was also pleasant, leaving the mouth with a fresh feeling after each treatment.
The tools are very sparse for a teeth whitening kit, even one that utilizes strips rather than mouthpieces. There is no whitening light, and there is no whitening pen for hard-to-reach areas of your mouth. The package has a shade guide, which is helpful, but there's nothing more. Not giving customers more tools is a disappointing shortcoming for a teeth whitening kit that provides so many other positives.
The excellent support services are a credit to the manufacturer. An email and phone number are provided for users, and emails are usually answered within a day. The Crest site has a FAQs section made from customer enquiries, and the company also has social media accounts on Facebook and Twitter, as well as photos posted on Instagram. The set also has printed instructions, and the site has instructions for the package as well.
The tools and end results are nothing extraordinary, but the Crest 3D White Whitestrips Professional Effects kit works well enough to add some whiteness to your smile. The three-week treatment time requires some patience, but Crest offers a painless whitening experience.