I like to use these whitestrips a couple times a year just to keep my teeth looking brighter. I normally keep them on longer than the recommended wear time but they do make my teeth and gums sensitive if I use them on consecutive days- I usually will space them out 1-2 days in between. I wouldn't say my teeth look professionally whitened but they do help to make them 1-2 shades brighter compared to baseline for me

I love this product and don't know where to begin! I love the fact that it makes it look like you have had a professional whitening at a really great price. I don't get the sensitivity with Crest 3D like I have with other products. I can't be without these white strips!

this product actually whitened my teeth!!! I was a little skeptical at first, but it worked after my second use! it does make my teeth feel a little sensitive, so I try not to use it too much, but I will definitely be repurchasing this product after I run out. 

These are the best drugstore whitening strips that you can buy. I've been using these since I was 16 years old and got my braces off. I especially prefer the professional effects, they stay better on your teeth and I believe I see better results. If you're looking for a quick and easy way to whiten your teeth this is it. 

[This review was collected as part of a promotion.] Really like how fast you can see the results when using these whitening strips. After 3 uses my teeth look brighter, without sensitivity. They’re comfortable to wear especially the fact that they must be worn for an hour. The strips are wide enough for those with bigger teeth so there’s a Pugh surface area. Overall, these will be my go to strips when it’s time to buy another pack.

These whitening strips are so amazing. They helped boost my confidence tremendously. After just one use I was already seeing changes. They can be harsh on the enamel of the teeth so I try to spread out my usage. They don't taste too chemically either!

I have very sensitive teeth and was even okayed by my dentist to use this, but it was still too much for my teeth. After two uses, I found my teeth were in pain and had to stop. If you don't have sensitive teeth then I'm sure it works well. I did notice a very slight difference in just two days.

I loved using the Crest 3D White Whitestrips Professional Effects. They have really improved the look of my smile and everyone comments on how white my teeth are now! My patients that have tried these have also been very satisfied. I would recommend them to anyone who is looking for a bright white smile!

While I was going to the pharmacy .. the girl who worked there when I was talking to her I saw her tooth and I was impressed about them , I asked her about their whitening , she answered me saying I used the " crest 3D white whitestrips. so after one week I bought this product and it was really amazing , incredible results , and now I got a great smile . Thank you Crest .

These definitely help whiten my teeth after just a few uses. My only issue with them is the price, but for the results it worth it. I only use them before I have an event like prom and usually do it the 14 days before and they stay white for a little over a month after!