Worst product ever! I bought these less than a month ago because of the low price. I’ve used other crest whitening strips and have never had a problem with them. I used these crest white strips the recommended way for 30 minutes and I started to notice my gums would start tingling and burn so bad that I had to take them off sometimes. I started to notice my gums were turning white and even starting to recede. I am so upset and want my money back. I can’t believe they are allowed to sell these.

[This review was collected as part of a promotion.] I think that these are a great product constantly have in my collection. They don’t make my teeth feel like they have a film on it after use and they’re very comfortable. I think that they’re 100% worth the money and are extremely effective.

So my teeth were always kind of yellow looking, even though I brushed and flossed everyday..so I bought the crest 3D Professional Effects white strips and crest 3D Luxe toothpaste, and noticed remarkable results after just one use of the strips, has definitely gave me more confident

I was a little dubious at first but after a couple of uses the results were remarkable. I`ve just stopped smoking but my teeth were never that bad as I frequently go to the dentist. After 10 days my teeth are now a dazzling brilliant white and pleased with the comments I`ve received. No sensitivity at all. Easy to apply and remove when finished. Highly recommended and cheaper than other methods.

I used to love these whitestrips when they were in the purple box with the Luxe line. They were my go-to and I always noticed a difference within a couple of days after I wore them. These new packaged ones are garbage and do absolutely nothing. So disappointed.

I have average kind of yellow tinted teeth and decided that needed to change for a photo shoot I was doing the next day! I tried these because of a friends experience and I noticed the difference that day! Love this and recommend it to anyone looking for a teeth pick me up! Especially for broke college students like me!

May 21, 2014 blue111 I have been using crest strips for about ten years. they work. I have received compliments for ten years. tip. (get teeth professionally clean first. I also use the crest whitening toothpaste to maintain and also mouthwash. everyone always ask me what I use and I tell them the crest white strips

I use Anti sensitivity tooth paste a week leading up to your treatments. I only use strips once per day for 30 min because I am sensitive. I CONSTANTLY get compliments on how beautiful and white my teeth are! The product adheres to teeth very well and I always make sure to trim them so they do not wrap around the backs of my teeth or touch gums too much. This helps with any sensitivity. The result is beautiful in only a couple of days! And after your initial treatment, you will only need to freshen up once a year. I also use the Crest Vivid White tooth paste which helps keep my teeth shiny. I have tried many products but this is hands down the best. Excellent product! Keep up the fine work Crest!

Professional Effects is worth the money. It does hold up to it's promise of whitening your smile back to what you wished it had been 20 years ago. The strips are high quality that do no slide, mush up, or foam at the mouth. They are very comfortable and much less painful as far as sensitivity issues of past strips. The brightness also last longer than Crest and other white strips brands of the past. I can't say you'll have bright, chicklet movie star teeth, but it will make you look young again and gives your confidence a boost.

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.