After only 2 uses I noticed a whiter smile. Im axious to see how much it improves with each use. The upper strip stays in place perfectly, no slip, and its not messy..My only complaint is the bottom strip. It needs to be longer. I have had some trouble with the lower strip staying in place and not sliding around. Overall tho, great product and is totally worth the price!

I used these one time and they had my teeth so pearly, bright white that people would continuously ask me what I used and how I got my teeth so white. I used them everyday day for two weeks and then I started using them every other day because it made my teeth sensitive. I was also using the brightening light along with it and it sped the process up. I would recommend this product for anyone who really needs help getting their teeth whiter because they smoke or drink a lot of coffee or brown sodas. Otherwise, it’s a once a year use for people with fairly white teeth and they can use Colgate optic white to keep the whiteness.

I noticed my teeth were whiter after just one use. I have used other whiteners in the past and did not notice a difference in my teeth but these ones actually work. I have used almost all of the strips in one pack and will definitely be buying more when I need them.

Why spend big bucks going to a dentists office for whitening when you can get great results from the Crest 3D White Whitestrips Professional Effects? I tried them and received instant results that were amazing. I'm 69 years old and the lifetime of stains disappeared quickly, and completely. This product is outstanding.

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

These strips are AMAZING! I used them every day, for the 30 minutes, and when the pack was gone (actually even after the first use) my teeth were SO much whiter than they’ve ever been. The strips also don’t slide or slip and have great grip so you’re able to talk and not feel like you have to keep your mouth super stiff to avoid having them slip off.

These were actually recommended to me by my dentist so I started using them I have had a couple of days where my teeth were sensitive but I don’t know if that was completely from the white strips most of the time I can use them and they are OK and they do really good at whitening my teeth

This teeth whitening kit does what it claims to do. It whitened my teeth quickly ( they were noticeably whiter after the 5th use) however after the first few uses I started experiencing great sensitivity and shooting sharp pains in my teeth. It got to a point where I had to stay up the night after using this out of pain. It’s not worth the amount of pain it caused... I might purchase the sensitive one next time

The only negative thing I have to say about these teeth whitening strips, is that the cost is a little spending. But these strips work amazing! If you're a coffee drinker like me these will work perfect as it removes the yellow stains from your teeth! I have sensitive teeth and it doesn't hurt nor effect my teeth either.

IT WORKS! You don’t need to go to the dentist and pay a ton to get an amazing smile. The 3D white strips do an amazing job. My teeth have never been so white. The best part is that it doesn’t make my teeth feel super sensitive like some other brands. Honestly it’s a bargain! I have and will continue to recommend this product. My partner and I will continue to purchase these for a long time!