Works really well! I definitely notice a difference after continued use. Be careful not to leave on for longer than the specified amount of time. I once fell asleep with the whitestrips on my teeth which added an additional 40 minutes to the recommended time, and my teeth and gums were extremely sensitive for the next two days.

I have tried all sorts of whitening products for my teeth. I must say, Crest Whitestrips are the easiest to use. Plus, the results are super quick! You just stick the Whitestrips on your teeth like a sticker. Leave on for about 30 minutes...and that is it! The results are great and I only need to use them for about a week to get the desired whitening that I need. Plus, the whitening formula does not bother my sensitive teeth and gums.

I purchased the 2 week pack and these strips have come a long way! They now actually latch to your teeth in a sense. There is no slipping and sliding or worried about tasting the nasty product gel. Leave them on for 30 minutes before bed and see results in the allotted time frame. I also have sensitive teeth and have not had a problem with them.

I love the old Crest Whitening Strips, but these new ones are terrible. They don't hold, I have to keep checking and making sure the strips are on my teeth. I didn't have to do that with the old ones. You guys are losing quality fast! I'd say save your money for a whitening treatment. ESPECIALLY if they're going to keep producing these low quality strips.

Crest come together with all other toothpaste products, but is 100x better. Since Crest had their 3D Whitestrips, I've always wanted to try it, and my mom got it for my friend and me and we tried it at the same time and it works, but after that I wasn't able to get some; but the point is you should really try Crest 3D Whitestrips, it work guaranteed to give you what you expect!

This has showed a difference in my teeth a lot. I’ve only used one kit, and I just recently started my second one, but after the full ten days, you can VISIBLY see the difference. I would, (and did) buy this again. I absolutely recommend these strips.

I’ve used Crest whitening strips for years and in my opinion, nothing works better. They leave you will professional looking bleached teeth with a lot less cost to you. It gives a nice even application and it doesn’t take away your Enamel leaving you sensitive. I highly recommend!

i'm typing this review as i have the whitestrips in. ive been using them for 3 days and i already see my teeth about 3 shades whiter! they really stay in place because of the advanced seal, which is great. teeth are a little bit sensitive but not overbearing. totally recommend this product. not extremely expensive either.

I've used these before and each time they do the job! I went about 2-4 years in between whitening and they stayed pretty white, with just brushing with crest 3D white toothpaste! Of course, using the strips again recently, has made my smile even whiter! I do recommend the LUXE professional effects as they stick the best and perform the best.

I grew up with not the best teeth cleaning standards. Resultantly, I have had stained teeth that I couldn't do much about. I have tried many whitening aids from gels and trays to whitening strips, whitening toothpastes, mouth rinses, etc. I tried the original crest whitestrips and was not impressed. I recently purchased Crest 3D White Professional Effects, and noticed a difference after the first strip was removed. At day 3, just as the box says, a definite difference was shown. Others have noticed as well. The first day I had slight sensitivity, but I have not had that problem since.