I've been using these since march 2015 and I inmediatley noticed my teeth to be whiter but it wasn't until I compared pictures from before and after that I realized how much whiter my teeth were. They really work and now I really have a more luminous smile. I think I'll start using two packages per year so I see even better results

I've been using the Professional Effects for the past decade, wearing them 2 times per week after brushing my teeth in the morning. I wear them for 20 - 30 minutes while driving to the gym, work, or running errands. The advantages are they are discrete looking, you can have a normal telephone conversation or in person, they're easily removed and disposed of, and you can easily purchase them from almost any store or on-line.

These whitening strips were my first I've ever used, and are still going strong many months later. I have bought another set just to keep up. These aren't going to give you a bleaching white smile, but will get some nice shades of white that are noticeable and look good on a smile.

[This review was collected as part of a promotion.] These white stripes work amazingly well! I saw a noticeable difference in the whiteness of my teeth after one 45-minute session. I have sensitive teeth, and these strips did not hurt my teeth or cause any additional sensitivity. Each set is an easy to open package that is small enough to be able to pack them if necessary. There was a lot of bubbling that you could even see while the strip was in place, whitening I could see!

These are amazing! out of shame, i do have tartar teeth that actually still looks discolored even after brushing daily. But because of this, the differences have actually proven. I love it tooo much, this is actually part of my hygiene daily routine :) Thanks again!

Finally, a product that meets and exceeds it's advertising claims! I am 52, smoke and drink lots of coffee and as a result, my teeth had yellowed badly. I have used Crest whitestrips in the past with fairly good results, but the twice daily application was messy and time consuming. Professional whitening treatments were not in my budget, so I gave these a try. After just one treatment my teeth were whiter than after a month's use of the old strips. Crest 3D also removed a dark spot on my front tooth I'd had since childhood that had remained despite routine dental cleanings. I was so pleased with the results that I bought a box for my daughter. Thank you for a wonderful product!

So about 4 years ago I got my braces taken off and was so happy to finally have straight teeth. But then I noticed that they weren't as white as before braces,so I decided to purchase the Crest 3D Professional Strips because I like the fact that I got so many in the pack. I used then for almost two weeks anf tapered off the rest. My teeth haven't been the same since..in the best possible way. Now I whiten my teeth every year even though I keep getting comments on how white my teeth are. I get so many nice words about my teeth is a big confidence booster. So here's why I love these whitening shtrips 1) no gross taste in your mouth 2) 30 minute wait time 3) my teeth aren't sensitive after using 5) whiten my teeth like a professional did it.

I TRIED THEM A COUPLE OF YEARS AGO, AND HAD GREAT RESULTS. WANTED TO TRY AGAIN, BUT THIS TIME THE STRIPS SLIDE ALL OVER MY TEETH, AND BARELY STAY PUT FOR 15 MINUTES, LET ALONE 30 MINUTES. DID SOMETHING CHANGE?? AM USING TWICE DAILY FOR FAST RESULTS! LOVE THEM!!

I have used every single Crest whitestrip available. I have used them for several years. I absolutely love the product and results. Everytime I go to the dentist(every 4-6 months for cleaning) my dentist and hygenist ask if I am using their whitening system. When I tell them no, I use the Crest whitestrips they are blown away. I am always getting compliments on my smile and how white my teeth are, Whenever I have a birthday or for Christmas, the only gift I ask for is Crest Whitestrips!! They are the bomb!!!!

I used crest white strips in the past and loved them. They always work and do the same job as getting your teeth whitened at the dentist, but for way less money. My issue is how small the bottom strip is. It’s oddly small... I am not sure if I got a faulty box, but the strip only covers up to each bottom canine. So weird!!