Ive been using Crest Whitestrips for years (Advanced Seal) and always noticed a huge difference. I received soo many compliments and people were always asking me what my secret was. I recently used the entire box of Professional Effects (Luxe) and honestly so no changes. Not sure if there was any change in the formula but i am a bit disappointed. I still think its a great product however and should definitely be given a shot

I like the fact the strips stay in place and you can go about your normal business. I've even taken them to a girls day to share. I do wish they were wider to fully cover the back of the teeth as well. This is my preferred brand and have purchased them several times.

These are the easiest teeth whiteners I’ve ever used and I love that they don’t really inhibit what you do. You can really wear them anytime and don’t have to devote a certain time a day when you know you won’t get anything done. They also pretty much work as expected!

[This review was collected as part of a promotion.] Dentist recommended for whitening! Love the crest brand, can cause sensitivity* but that’s any major whitening - ease up usage / use less often if you experience sensitivity! Works very fast, couple days and you can notice a difference! Combined with toothpaste, mouthwash and the strips your teeth will be shining!

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.

These are amazing. Everyone should purchase this product! Crest whitening strips work wonders and actually make teeth whiter. They are kind of pricey but super worth it in my opinion! I am a coffee addict so these whitening strips are a staple for me.

Working the front desk requires A1 customer service and lots of smiling. So when I noticed my teeth needed an extra lift I tested out the Crest Professional Effects and loved my results; everyone seems to notice my new and improved White-Bright smile! Thanks

I noticed a difference after 4 days of use, after 7 days is when my husband noticed! The taste does suck, but it’s easy to get used to after your second or third time using them! I wouldn’t prolong the use of your teeth start to feel a tingle or pain. That would be your sensitivity to the whitening product on the strips.

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.

I use these twice a year! I’m a dental student and I think these are better than professional whitening strips. They make my teeth so white. You can leave them on 2x as long as the package says to get double the use out of them too. Just use some sensitive toothpaste to help with sensitivity