ColgateOptic White Overnight Teeth Whitening Pen, Enamel Safe and Vegan, Teeth Stain Remover to Whiten Teeth, Teeth Whitening for Sensitive Teeth, 35 Nightly Treatments Per Pen, 0.08 Oz,2 Pack

I tend to write long reviews, so here’s a quick list of positives and negatives of the whitening pen. This may also answer some questions you have about using the whitening pen:Positives:-Actually whitened my teeth!-No bad taste-No irritation/pain-Easy to apply-Nice packagingNegatives:-Did not last as long as the box said it would (lasted 1.5 weeks instead of the 30 usages the box promised)-You have completely to dry off your teeth and then paint on the solution on each individual tooth (I personally didn’t mind this. It just took a little while to do)-If you paint over wet teeth, it will ruin the brush-The solution easily clumps up in areas on teeth after it dries (this didn’t bother me much, but thought it was worth mentioning)Okay so here’s my more in depth review:I’ve tried just about every whitening toothpaste on the market, charcoal, baking soda, and more, with no results. I heard about this pen and thought I’d give it a try. I was a bit nervous because I can have sensitive gums, but I felt no irritation whatsoever! The pen lasted exactly a week and a half before I used it all up (so it did not last the 30x stated on the box!). In that time, I can honestly say my teeth look whiter! I was pleasantly surprised. Believe me, the yellow on my teeth was stubborn! I may purchase the pen again to whiten my teeth even more.However, I noticed a few things about the pen that might be considered negatives to some people. First of all, you have to COMPLETELY dry your teeth before “painting” on the whitening solution with the pen. Otherwise, the solution gets all clumpy and dries up on the brush, which will ruin it. Also, be aware that the pen paints this solution on your teeth and sort of leaves a thin film/coating over your teeth overnight. The solution doesn’t have a taste or anything, but you will definitely want to brush your teeth in the morning to get it all off. Also, be aware that the solution will clump up in places on your teeth when it dries.I was not aware that that was how the pen works when I bought it, but looking back, I noticed that most of the negative reviews focused around the white clumpyness of the solution on your teeth. This honestly didn’t bother me much, though it was a little bit of a hassle to dry off my teeth and get an even coating on each tooth.Additionally, you will only be able to whiten your front teeth, as it is to hard to dry off and paint the teeth at the back of the mouth.Overall, I am pleasantly surprised and impressed by this whitening tool. I’ve tried so many different things and this is the first that has worked! If you are okay with the few “negatives” than definitely purchase this product! I would purchase this again!As a note, I tried to take before and after pictures but because of bad lighting, they didn’t turn out. But I did see a huge improvement in my teeth’s whitening!

First off, the main goal of the product works. It does whiten teeth rather quickly. The con is it does come with a bit of gum irritation if you're not careful to keep it only on the teeth. It takes a little time to apply only to the teeth and be careful with the application. Works best on dry teeth and letting the product dry before you close your mouth. Your teeth feel furry in the morning so you'll want to brush immediately. I was unable to use it more than 2 days in a row due to the gum irritation. Overall, it works

I didn’t really like the product, if I accidentally got it on my lip it would have a burning feeling and a dry white spot, it also made my teeth super sensitive I can’t even chew gum at the moment without my front teeth feeling a sharp cold pain feeling. I thought I did my research correctly but I don’t really. Didn’t work for me.

I honestly did see my teeth get whiter overnight. I need to use more consistently but this is a really good product and I’m very pleased with it!

I usually use (and am generally happy with) Whitestrips, but figured I'd give this a try for an area the Whitestrips miss: inbetween teeth where stains readily build up (and are hard to reach for removal).Simply put? This product did NOTHING for those stained areas. Worse yet, it's a relative nightmare to use--especially on lower teeth.Supposedly this is "easy to apply," but it really isn't. For starters, it's hard to tell if any of the dispensed liquid is even applied after the 1st tooth--as each "clickably" dispensed application is supposed to cover 3 or more teeth. And the dispensed liquid quickly and readily gums up the brush applicator. That same gummy, textured material also frequently attaches to the inside of your mouth, even if you are able to keep your teeth fully exposed until the liquid dries. (yes, you'll be "grinning" like a loon for numerous minutes, that or blow-drying your teeth!) :DOn the upside, it didn't really irritate my teeth or gums, but brushing it off often did (as it doesn't readily come off--especially inbetween your teeth and right at/on the gumline). I also figured out an easier application method, which was to click the pen until the liquid flowed and let it pool on a plastic lid (so that I could dip the brush into the little pool of liquid). This sped up application and minimized the messiness, but I still had to repetitively dry my teeth and gums, clean the brush, swab spittle out of the way as I waited for the liquid to dry on my teeth, hold my mouth unnaturally open to keep the teeth exposed for the same (drying) reason, and frequently wipe the excess from other mouth areas that contacted my teeth or the brush during the process.Even all of the above-mentioned annoyance would be worth it if this pen whitened the stained areas I was targeting, but I really didn't notice any difference whatsoever after multiple applications (supposedly this whitens away 15 years in a week). I'm guessing this product may be helpful if you aren't as fastidious as I am when it comes to dental care (I brush and floss at least twice daily--immediately after breakfast and dinner, I use a whitening rinse, I further whiten with Whitestrips 1-2x yearly, and I generally avoid--or brush or rinse soon after consuming--heavily staining foods or drinks). Nonetheless, this product states it removes stains, so it should have impacted the stained areas I was targeting.BOTTOM LINE: I found this whitening pen to be both time-consuming and annoying to use. Worse yet, it didn't provide any noticeable whitening to the areas I was targeting on my teeth--especially those normally hard-to-reach areas where a pen-like, brush applicator device should be optimally suited.

As described. Works pretty well

I've been using this weekly for a while, I just came from my dentist for cleaning. This usually takes about 20 minutes max as he always says I do a good job and he finds very little to clean. THIS time he said there was something caked on the back of my lower teeth, and he had to really pick it off!! Apparently this 'whitening' product was leaving a thin layer that no amount of brushing was removing! I had no idea but I tossed the rest of the product. After years of very little dental work, this product can be the only explaination since it's the only change in my dental routine!! I did notice a slight improvement in whitening, but my dentist made me afraid to use this any longer!!