My take may be a bit different. I'm 64 yrs old & don't want the super white teeth that looks good on 20 somethings. Only folks I know w/ really white teeth at my age...it's dentures & the too white often draws attention to the fact that it's dentures. Dental care wasn't as advanced for kids in the 50s and 60s so our teeth are more tooth-colored. I also have several crowns which won't change color so too much whitening of natural teeth would give me polka-dot teeth. With first box of whitestrips, I thought I'd be requesting refund cause didn't see any difference for few days but then after ~ 5 days use, there was noticeably less yellow color. I got to the lighter/less yellow tone that works w/ my crowns and now use two days in a row every week or two and it seems to be keeping my teeth the lighter/cleaner color that I want. I don't know if that's recommended but it works for me/my age/my crown situation. If you have older teeth and some crowns, you may be able to get whitestips to work for a color that makes you happy.

The best way to whiten your teeth! I get comments all the time for my white teeth and my dentist actually told me that I have a "movie star smile." You don't have to use them all the time to get results either. I used them every few days at first but now I only use them every few months. Highly recommended!

My teeth are rather normal off color and not a whole lot of nasty. I don't drink coffee, smoke or drink red wine. I used the Crest mouthwash and Crest toothpaste while I used the Vivid strips, which didn't work. Then, I used Professional Effects and it didn't do anything either. A friend gave me an extra ten packs of ProEffect strips also. So, I was more despondent than anything.

I started using these strips last year after seeing my teeth fade. After a few uses i started noticing a difference. I completed my box and my teeth were definitely whiter. It's not too expensive and it's honestly worth the money. I will definitely keep purchasing.

These work but I will remove one star for the sensitivity after using. Any drink, hot or cold, will feel strange against your teeth after using. Make sure you only leave them on as long as instructed. Hard to attach the bottom strip and it doesn't conform well to your teeth.

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.

Growing up, my parents (bless them) didn't exactly stay on top of my dental care. My teeth were yellow and I had over a dozen cavities when I finally decided to be an adult and face my fears. I asked my dentist about teeth whitening and he told me not to bother with professional whitening, and to just get these. Can I just say, I love my dentist? These are a game changer. I can now smile openly without insecurity!

I am disappointed with the quality because there is no expiration date included on this product. They package the individual strip packets in a cardboard box and the strips nor the box have the expiration date. I will need to return these for a full refund because they do not work if they are past the expiration date and there is no way of knowing.

Definitely works!! Be careful with the 1 hour one though.. I used it at night for an hour and the next day my teeth felt so sore. It was such a weird feeling, so be careful. I don't even have that sensitive teeth, so I just recommend the 30 min one. That one does the trick!

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