The whitening strips did their job well. However, there were some small issues associated with them (although temporary). One, after removing the strips, I could see that they had caused uneven coloring of my teeth. This went away after about a day. I also experienced some increased tooth/gum sensitivity for about two or three days after using the strips.

Crest 3-D white looks professional affects white strips are by far the best on the market! I use these once every six months and I constantly get compliments on how white my teeth are!. I will continue to purchase these over and over again and you should too! You will never be disappointed!

I'm not the biggest fan of whitening strips, I normally prefer the whole UV light things, but these Crest whitening strips work very well. They whiten my teeth so well, and I like it enough to the point I will use them if I can't get ahold of my normal teeth whitening kit. 

[This review was collected as part of a promotion.] Thanks Influenster, for the free Crest 3DWhitestrips.. the packaging was not great, but that may have been due to shipping. These strips worked ok, I noticed a slight difference. I dd have a slight sensitivity to it.

I am a long time fan of this brand and use it on a daily basis. I love brushing my teeth and that minty clean feeling afterward. This product did not disappoint. I love the flip top lid. Makes one handed tooth brush wrangling super easy (and clean). The toothpaste is pretty smooth with a nice icy blue color. Not a lot of grit to this which I prefer. I dont like having that gritty taste after I brush my teeth. Goes on smooth and "lathers" well. Not sure how you describe that with toothpaste, but it works great! I feel very fresh-breathed afterwards and that feeling lasts quite a while.

These made my teeth super white. I didn’t notice my teeth getting sensitive but I know a few people who couldn’t do the strips multiple days in a row because it hurt their gums. I have a high pain tolerance in my mouth though so I didn’t mind. They work great.

Love my crest white strips and honestly couldn’t live without them. My smile is something I take pride in and this is my secret to keeping white teeth. They are very effective if you use them the way they are intended to be used. Easy to apply and not uncomfortable at all.

I have used Premium Plus White Strips in the past and have had AMAZING results!!! I decided it was time to whiten again after almost 2 years and decided on the Pro Effects.In my honest opinion they are not what I expected. I do not smoke, drink coffee rarely, never drink red wine, soda once in a while...nothing consistent enough that would stain my teeth...so I did expect more from these strips. That being said maybe I bought a bad batch of strips?!? I do have faith in crest products, just not very happy with this particular product.

I grew up with not the best teeth cleaning standards. Resultantly, I have had stained teeth that I couldn't do much about. I have tried many whitening aids from gels and trays to whitening strips, whitening toothpastes, mouth rinses, etc. I tried the original crest whitestrips and was not impressed. I recently purchased Crest 3D White Professional Effects, and noticed a difference after the first strip was removed. At day 3, just as the box says, a definite difference was shown. Others have noticed as well. The first day I had slight sensitivity, but I have not had that problem since.

I didn’t see as significant of a change after using these as I did the 1 hr strips. I did use these for a while, but haven’t repurchased because I just felt like I had found other products that would show an immediate, lasting difference that built over time where these just didn’t do that.