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.

These work! I use them very, very rarely, like maybe once a month. I like that it only takes 30 min and my teeth definitely look whiter after. They do feel sensitive when the strips and on though, and that kinda freaks me out. I don’t think I would use them as frequently as they recommend.

Pretty good ans made my teeth really white. However, giving it lower rating cause it makes my gums feel sensitive and my teeth hurt. So… I don’t feel like it’s worth it in terms of my dental health. Hoping to find something that works a little better. But I do like crest a lot!!!

I’ve used these for years and they’re the only product that is able to get my teeth truly white! The only downfall to using this product is that it caused me slight teeth sensitivity but I assumed that would happen because it’s a teeth whitening product.

I use crest 3D whitestrips. Have used the crest whitening strips for many years. I had my teeth professionally whitened years back, but that fades over time. I keep them nice & white with these strips. I've tried other brands, but they are a waste of money. Crest is the best!

Love this toothpaste! I'm super conscious of my teeth and am always trying to keep them healthy and white -- and this definitely keeps them shining! The minty taste isn't my favorite, as it sort of leaves a bad after-taste, so I would recommend following up with a mouthwash if you're looking for the minty fresh breath.

They are ok but when I use them it makes my teeth super sensitive to the cold or heat !!!Like I can’t drink anything with ice or real hot after using this.It does make your teeth a bit whiter but I can’t really tell a difference in the effects of it and the toothpaste which doesn’t hurt my teeth.

I am only 5 days in and I have already noticed an extreme change in color of my teeth. You wear the strips for 1hr a day. The strips are big, so I cut them in half (horizontally) and get double the use out of them. My teeth are usually sensitive and I have not experienced much sensitivity at all throughout the 5 consecutive days I have been doing the treatment.

I bought Crest's Professional Effects Whitestrips to brighten my smile before my wedding day because I had accumulated some brown coffee stains around my front teeth. I did three days of the whitestrips and was very pleased with the results! I would recommend these whitestrips to anyone wanting to get rid of stains and brighten their smile a few shades whiter.

This is the best toothpaste that exists in the market, it leaves me with a great freshness in my mouth and good breath and it also whitens my teeth in a magnificent way, I used it years ago and I would not change it for anything I get it in any Pharmacy And it is High quality I recommend it for someone who like me to wear shiny white teeth, it leaves you clean and fresh that will fascinate you