I received it as a part of my Christmas gift from my husband last year ( He knows me really well... I am a teeth freak). It turned out to be one of my favorite gifts. My teeth felt clean and sparkly. Coffee staining diminished as well. And now I truly hope to get a new box this coming December!

Very good product if you are will to spend the money. Definitely does a great job whitening if you use as directed. But for the price I would rather just buy hydrogen peroxide to white my teeth with since it's literally the same thing but in liquid form and less than a dollar at most stores. Strips also make my teeth super sensitive.

Professional Effects are by far the best whitestrips yet, I saw results with in the first few days and the best self-esteem boosting compliments I have ever gotten on my smile! I finally feel good about my smile! Definitely will be using this product over and over again

After using this for a month and seeing virtually no change, I have decided that this product is not effective. I wish it would actually whiten the teeth and not just leave a bad taste in my mouth every day. It is also quite expensive as a product. Not worth it in my opinion.

You can definitely see results from this product if you use the strips multiple times, you won't see any significant changes after just 1 use. It does make your teeth sensitive to cold and hot for the next day or so after a treatment so be prepared for that. It also makes white “spots” on your teeth instead of your whole tooth becoming whiter, so make sure you prepare to do multiple treatments to balance these spots out. Overall, it does do a good job of whitening though if used correctly.

I use these 4 x a year for maintance to keep my coffee stains at bay.  I don't experience any sensitivity or pain from them.  I don't like the sticky mess they leave on my teeth but its tolerable.  I don't like stained teeth and this gives me some control over the situation.

This product is such a great & easy at home whitening kit. Great for people who want to enhance their smile & brighten the look to life superficial staining from foods & beverages consumed on a daily basis. It's easy to use when you have a busy schedule & don 't have 2 hours to spare at a dental office. I would highly recommend this product!

Purchased the original Crest Whitestrips some years ago and was pleased. I am not a smoker, coffee or tea drinker and only experienced minimal whitening with the 3D Pro Effect strips. Not remotely close to a professional whitening.Frankly one could probably achieve the same results from a whitening toothpaste!

A MUST for white teeth. I would definitely advise caution though because these do make my teeth sensitive and I don't even have sensitive teeth. That being said, I'd you do have sensitive teeth, I reckon this would make it much worse. These do work like an absolute charm though. Haven't found anything at-home that's comparable.

I loooooveeeeeeeee these so much! They work and the one that comes with the little stick to boost whitening is awesome (I'm not sure if this is the specific one) but it definitely does weaken your enamel, i can feel it when i drink which is why i stopped using it !