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View other whiteners by Opalescence (5 items total)

Opalescence Whitening 10% 15% 20% 35%

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Product ratings (126 reviews)

Rated: 4 out of 5
Agreeability:
Rated: 3.7 out of 5
     
Affordability:
Rated: 3.8 out of 5
     

83% of reviewers recommend

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Requires Tray System
10%-35% Carbamide Peroxide
Average Price: $168
Opalescence Whitening 10% 15% 20% 35% image

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Anonymous, Las Vegas, USA
Dec 24 '11
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Paid $198.00

I received my custom trays yesterday, and I am using 15%. The first time I tried it I felt no sensitivity, which I thought I did something wrong like not use enough of the gel but I did like my dentist told me, just one line all the way around my upper and lower trays. I saw no result from one time, probably because I didn't use enough gel. My dentist told me to leave them in for 2-2 1/2 hours everyday and not to sleep with them because I could swallow or or chew on them at night. Today is the second day I am using my trays and gel and this time I put a little more gel. I made sure I didn't have any gel left over because I was afraid of sensitivity. I did feel some mild sensitivity but that went away after a few hours. Today I did see a little change of color on my front teeth, the sides are harder to bleach for me because they are a shade darker then the front (my dentist said I have multi-color shades). My set was 198$ I know that other people paid less but my custom trays fit really good and I don't have any gel run over (just once I put to much and I felt it on my gums...ooops). I read a lot of positive reviews on this product so I decided to give it a try. I hope it works for me, I am a bit un-patient with results but my dentist said that I get the same results with 15% as I would with 35% and it is much lighter on the gums which is better for my teeth. After my two months supply is up, I will purchase the 15% from amazon which I found to have the cheapest refill syringes than going through my dentist. Once I get better results I will post before and after pictures. I found these reviews very helpful and thought I'd share my experience with this product!

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Renee, Suffolk, Virginia
Nov 20 '11
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This product works GREAT I used it as soon as I got it. I used the 35% strength. You can feel it working as soon as you put the tray in your mouth. It's really hard to keep it in your mouth a long period of time because your gums will be stinging. I think I should have went with a weaker strength. I would not recommend the higher strength for people with sensitive gums. Is there anything I can put on the guns so they won't get in contact with the gel while I am using the mouth piece?

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Elise, Arkansas
Nov 16 '11
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I am currently using Opalescence 20 everyday (1 hour daily) and have been for a month. I am seeing very little results and also there is still yellowing by the gum line. How long until I see more impressive results?

Recommended by Elise

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Debra, Ontario, Canada
Nov 09 '11
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I initially whitened my teeth with Opalescence 11 years ago and have applied touch-up applications 5 times since. My teeth have remained white and strong.
White teeth project a younger, healthy image. Whether presenting in the board room or applying to the mail room, bright white teeth make a good impression.

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Amanda, Riverside, CA
Oct 31 '11
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I've been using this product for about 4 years now. I used to be so self conscious about my teeth because of how yellow and dingy they were. I would always Photoshop my teeth to make them white in all of my pictures. After using Opalescence, I haven't even had to think about Photoshopping my pictures.

I try not to whiten them too often. Maybe once every 6 months. For me, it's incredibly painful to use. I can't keep it on for more than 2 hours or so, even if I pre-medicate with ibuprofen or Tylenol. There have been a few times where it oxidized my gums so badly that the skin around my teeth turned white and died and my gums were bleeing for about a week. I had to rinse with hydrogen peroxide and Magic Mouthwash every night just to keep them from getting infected and to stop the pain and swelling. Also, when I first remove the bleaching tray, I will have white spots all over my teeth, but those usually go away after a few hours.

Other than that, this is a great product. I don't appear to have any damage to my teeth, and they always look great afterwards.

Recommended by Amanda

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Shell, manchester
Oct 19 '11
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im a dental nurse and was given a trial to try just 2 5 hour sessions have got my teeth gleaming id recomend this to anyone

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Scott, Middlesbrough, England
Sep 24 '11
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Hi All

I've finished whitening my teeth and the results are fantastic.
I have 20 syringes of Opalescence® PF 20% left over and eBay won't allow me to sell it. I can't even sell it on Amazon. Anyways I would definitely recommend it.

Recommended by Scott

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Scott, Middlesbrough, England
Sep 13 '11
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Opalescence PF works.
I am a former heavy smoker and coffee drinker which discoloured my teeth and gave them a dull appearance. My Dentist recommended Opalescence and after 1 month I have experienced incredible results. I use 20% and bleach overnight. Sensitivity does occur but it's not unbearable, Sensodyne toothpaste is a must.
I have included before and after photo's.

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Jasmine Culwell, Pueblo, CO
Sep 08 '11
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Paid $225.00

I have been using this product for seven nights now. (15% PF) The results are amazing. I had my one week check-up at the dentist yesterday and he said that he has never seen such good results. In just one week my teeth have whitened SEVEN shades!!! I am very impressed with the results and do recommend this product to anyone looking for a brighter smile =*] No sensitivity and no gum soreness! I will continue to use this product for the full 21 days I LOVE IT!

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Thuraya, brooklyn center, mn
Jul 27 '11
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I used this product with 20% for 4years ago. The result was awesome, I haven't wear it for 3 years now, but my teeth are still white, a lot of people was notice that my teeth are much whiter than theirs, they like my teeth a lot. To start, my dentist told me to wear it overnight for the first 21 days. After that just wear it whenever you want. The most important thing to remember that you have to wait at least 30mins after brush your teeth to wear it (so there no chemical left on the teeth). You wear it right before you go to bed, so no eating, no drinking water either, and no saliva also. That was how it work for me. Hope it will work for whoever try my method.

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Laurie, Austin, TX
Jul 22 '11
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Paid $29.00

My family are Dentists, and I love this product. My teeth have changed a lot since using it. It's worth the money!

Recommended by Laurie

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Laurel Casey, Denver, CO
Jul 17 '11
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I started using Opalescence one month ago and I absolutely love the results. My orthodontist recommended that the first time I use Opalescence that I only have the trays/gel in for two hours. I didn't see much of a change. My mouth was a bit uncomfortable for the 2 hours when I first used Opalescence. My gums and teeth were a bit sensitive for about 24 hours. One area of my gums was a bit discolored and tender, and that went away within 1 hour. Make sure when using Opalescence that you are sure to wipe off any gel that has escaped from your trays and gotten onto your gums. That will cause them to burn; if there is no gel on your gums, there will be no burning :) Four days later I did a second trial and had them in for 4 hours. I immediately saw a much brighter smile. I am currently on my third trial (5 days after my 2nd trial) and am keeping them in for four hours. I am very pleased with this product and am the 4th person in my family to use it. I would recommend Opalescence to anyone that wants easy teeth whitening that has real results and can be compared to professional in-office teeth whitening procedures. I have been using 15% concentrate Opalescence.

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Sophie , Chicago, Il
Jul 08 '11
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I got this product almost 2 weeks ago and my teeth are SO much whiter it's crazy. They were so yellow before it was disgusting and now they are sparkling white. My teeth are a little bit sensative but what I do is my dentist gave me MI Paste which makes your teeth less sensitive. I put that on my teeth for 5 minutes and then bleach 30 minutes later. My teeth are usually really sensitive but now they are barely sensitive at all. I use the 10% and leave it on overnight for about 9 hours and I noticed a difference after 1 night. This is my favorite product ever!

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Lu Ann, Des Moines
Jun 13 '11
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Paid $329.00

Well, it's the end of round 2. My dentist agreed that the 30-minute-use-time method did not work for me and asked that I try the overnight method. Well, one month later, I still have the same dingy yellow teeth that I had when I started. This product has been a dismal failure and I am incredibly disappointed. Opalescence guarantees that its products will work and offers a 100% refund if the user is not satisfied; I'm not and I am going to ask for a refund. What a waste of time and money.

Not Recommended by Lu Ann

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Janice, New Orleans
Jun 08 '11
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Paid $35.00

I used the 15% strength for 2 weeks. Nothing. Now I am using the 20% and in the middle of the second week. I am just beginning to see a little difference - maybe one shade. I am a bit disappointed but am still hoping to see white teeth. Any thoughts?

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Kim, NY
Jun 07 '11
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Used the last two nights and I see a considerable difference! I am in a bit of pain today though having kept them in for about 8hours both nights...I'm gonna have to skip tonight cause my teeth are throbbing. As for people complaining of gum problems my dentist told me to take care to not put it on gums, just one strip of gel at base of front tooth. She said to trim down any part of the mold where I am having prolonged gum exposure, and to take a toothbrush and brush off gums after inserting. She said a liitle white spot on gums after is normal but any red spots should be considered prolonged exposed spots and to concentrate on avoiding/caring for these areas with the next application.
I had bad yellow teeth from lots of coffee and smoking, even "permanent" stains are lifting!!! My teeth actually look white for the 1st time in a while, and I'm only two apps in! Though I am only going to leave on for 4-5hours in future due to the pain. Good luck to all!

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Bianca, Australia
May 30 '11
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Paid $15.00

I have nothing but great things to say about Opalescence! I originally went to my dentist and got my customized moulded tray and 2 syringes for $200 (soo expensive). I used 15%. I used it everynight for about a week and my teeth were quite sensitive so I stopped using it each night. I went onto Amazon and bought 4 syringes of 20% for just $15 and I use that on my teeth every 3rd night. I have got great results from Opalescence.. my teeth were never stained badly, they were slightly yellow but I wanted to get very white teeth and Im happy to say that I now have VERY white teeth! :) I do get a bit of sensitivity the next day but it is not unbearable and the results are worth it. You will need a customised tray for your teeth though. Dont use those silly at home moulding kits.

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Manmohan Sinha, u.p india
Apr 26 '11
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i have been useing this product from last six mounths.it work really good.i am chewing tobacca called r.m.d and it effects teeth very badly but thanks to opalescence.

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Anthony, Indianapolis, IN
Apr 26 '11
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I started using this product (10%) about 3 years ago for a few months. I saw minimal to average results and had average sensitivity. I upped the dosage (35%) and started getting better results but the pain was too much if I used it too frequently. My teeth got pretty white and I got quite a few compliments. Its been almost 3 years and it's time to redo them, I've purchased the 20 and I'm sure it will work out good.

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Lu Ann, Des Moines, Iowa
Apr 16 '11
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I have been using this product for nearly one month and there has been no appreciable difference in the appearance of my teeth from when I started using this product to this point. I can't begin to convey how disappointed I am with Opalescence. I need to replace two crowns on tooth numbers 8 and 9 and require two new crowns on 7 and 10 but both my dentist and I wanted my teeth to be their whitest prior to seating the crowns. What a waste of money....... My teeth are as dingy and yellow as when I started the bleaching regimen. I see my dentist on Tuesday, April 19, and she will get an earful. If I wanted to throw my money down the drain, I would have gone to a casino-gambling offers at least a chance of winning. This product stinks!

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Eileen Fedorus, edmonton alberta
Apr 06 '11
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I have some in the fridge for over a year but want to know if its out dated. Is there a date code one the product ? Or any other way I can tell if I should use it?

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Ash, orange
Apr 03 '11
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Like any whitening agent, OPAL will ONLY whiten your ENAMEL. the less enamel you have, or if it has been worn down over the years, it wont pick up the bleach. Which is why some people aren't seeing results or experiencing extreme pain, or spotting. I, like many others, experienced alot of sensitivity with this product when I wore it overnight because i have some enamel loss near the upper part of my teeth near the gums. i am using the 15%. The best way for me was to use it for about 1hour everyday or everyother day. and i got the same results and minimal to no sensitivity. overall this product really works considering that in 1 use you can get a shade whiter. :)

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M, Houston, TX
Apr 02 '11
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I have used whiteners from the dentist over the years. Last year when I purchased some (Opalescence) from the dentist I did not have a problem with any pain. Then last year when I used the remainder (kept it in the refrigerator) it left we with a very sore, red place on one place on my gum. I thought possibly it may be too old. I purchased a new container, used it a couple of times with just a little bead where each tooth is in the tray. My teeth were yellow near the gum line. Yesterday I bleached again and used more Opalescence so that the teeth at the gum line would whiten and my gums are terrible. At first when I took the trays out the pain was severe. They were kind of white with very places. Then last night they had a purple color a lot of places. Today many places are very red and raw with some little places being yellow. My teeth are white up to the gums but I hurt and pray my gums will heal. If anyone has an explanation, please give it. Also, it only happened on my upper gums; not the lower.

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Fabiana, Houston
Mar 31 '11
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I love this product, I got 20% but I slept with my tray and in the next morning I wake up with alll my teeth very sensitivy. I skipped one day, and I did the same thing and again I wake with my teeth hurting. So I changed the way to use. What I do now, I use it for one a hour, and then brush my teeth to clean the gel in my teeth. I do not swallow my saliva during the treatment, I spit it in a glass, because I do not like to have the possibility of swallowing this gel. The results is very good. One a hour per day..

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Michele, Mammoth, Ca
Feb 14 '11
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I have used the 35 percent for 3 nights, all night. No problems with pain or sensitivity. Dramatic improvement in whiteness of teeth, so I am very happy. I use small amounts, so have no gel leaking. This is so much better than Rembrant. Crest does practically nothing for me.

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Moi, Northern CA
Jan 24 '11
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I've used Opalescence twice now; it's the 30 minute tray version.

The second time I had a strange side effect. I actually had mild upper-chest pain.

Do you think I may have swallowed this stuff, or did it slither down into my esophagus? This is more than a bit disconcerting.

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Laura, Pennsylvania
Jan 23 '11
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I am absolutely THRILLED with this product! I got it last week and I'm using the 15%, and have done 3 applications so far (overnight). I was worried that I would not be able to sleep in the dental trays but they are so thin and light that it is no problem for me. My dentist said use 1/2 syringe of gel for each application, (right now I'm doing upper teeth only) but instead I used less, about 1/3 of a syringe, as I read that too much gel will cause sore gums, etc. The morning after my first application I was STUNNED! My teeth were stained from coffee and smoking and the next morning they were SO WHITE I could hardly believe it! I love this product and highly recommend it, but you MUST have dental trays made by your dentist to use it (mine cost $150 and included the gel), and I recommend using as little gel as you can, as it will burn your gums if you use too much gel and it seeps up from the edge of the dental tray. Also only do the fronts and bottoms of teeth, not the backs - that is why a lot of people get pain - my dentist said do not do the back, and do it every 2nd or 3rd day. WORTH EVERY PENNY!

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Michelle, VA
Jan 21 '11
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Just got this yesterday. It works good. I'm in HS, and the dentist decided to give me the higest and strongest one (the 35% one) and let me warn you, if you have sensitive gums like I do, DO NOT PUT TOO MUCH IN THE TRAY. And if you feel some of the gel leaking out, simply wipe it with your finger, a q-tip, or a paper towel. But other than that, it isn't that bad. Once in a while I get a strong pinch in my gums, but nothing too extreme. But if you get the 35%, don't expect a hollywood smile in an hour. It might take a few days. I'm on my 2nd day and my family says that my smile is getting better and better! (:

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Phil Landfried, Santa barbara ca
Jan 17 '11
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USed 35% 20 times for 30 minutes over two weeks
Satisfactory results
No pain

Want to know how often to use to maintain whiteness

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Gail, Maine
Nov 26 '10
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I have been using the 15% gel for a couple of weeks, but the pain is intense. It doesn't hurt until about half an hour after I remove the trays, then the pain increases over the next several hours, affecting all my teeth. The pain is so debilitating that I don't know whether I can continue the process. On the plus side, my teeth are significantly whiter than when I started.

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Shana Miller, Tucson, Arizona
Nov 12 '10
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This product works great. I too have very sensitive teeth and gums and I also had a reaction the first time that I used the product. But I noticed that there was alot of the gel coming out of the top of the custom trays that I had placed in my mouth. The next time I used alot less of the product and none of the gel managed to emerge from the trays. And guess what.....there was absolutely no reaction to using this product. My teeth are very yellow and it has always been very embarrasing for me. To the point that I would not show my teeth whenever I smiled. Now I am smiling very brightly, teeth showing every time. I use the 20% strength product because it just seemed more practical. It took years of unhealthy living for my teeth to become this yellow and it doesn't make sense to use the 35%(the strongest of the available gels) the first time I attempted to whiten my teeth. Stronger does not always mean better. I just went on the belief that it took years for my teeth to get this stained, using a super-strength gel to undo the damage quickly seemed ilogical. I felt like I would have better success gradually undoing the staining, with a lower strength gel, with consistant usage, as I gradually increase the time that I wear them. I love this product and I love the results. I would definately try this product again and I would recommend it to anyone who would GRADUALLY like to increase the whiteness of their teeth.

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Anonymous, Sydney, Australia
Nov 09 '10
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This by far has been one of the best investments ever. I was recommended to use the 10% by my dentist which had worked well but i wanted that hollywood white smile so instead ive been using the 20% - After the first night sleeping with the 10% my teeth were sensitive the next day ( which was expected ) i found that when i had combined my bleaching routine along with either colgate sensitive toothpaste or sensodyne this helped dramatically. I have been bleaching my teeth for the past 3 weeks and have added a photo to show proof of how well this works. I'm glad i have not wasted my money on an in seat whitening procedure - this has been money well spent - i would def recommend this.

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Kimberly, Idaho Falls, ID
Oct 15 '10
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I have used Crest Professional Effects Whitening Strips before I used the Opalescence 35%. The Opalescence knocked the socks off of Crest's over the counter crap! I have only used one application of the Opalescence and my teeth are already whiter than the Crest strips ever made my teeth. I am also VERY fortunate that my dentist offers Opalescence for FREE just for getting my teeth cleaned every 6 months. How great is that? They also did the impressions for my customized bleach tray for free as well. Can't complain there! The only thing that i can complain about is an error that i caused. I used a bit too much bleach and it got on my gums and made them burn for about 6-7 mins. But i blame human error on that one. I'll use less next time and i'm sure the results will be wonderful again! I highly recommend this product. I would gladly pay for this product if i needed to! :o)

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Donna, Devon
Oct 02 '10
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LOVE LOVE this product! I used to be a smoker and a huge fan of coffee and my teeth suffered through the years of this bad habit. Finally stopped all that, and have tried different sort of teeth whiteners, but this one is the BEST! Yes, it's a bit expensive but really worth every cent. Easy to apply and use, first night, found the tray uncomfortable but then you get use to it after. Didn't have any gum sensitivity, but my teeth were quite sensitive which I was told was expected. Used whitening over night, and result was noticeable the next morning. My dentist told me not to drink anything dark of colour as this could stain the teeth and the result would not be great. Great thing was I drank everything with straw, which was great for my sensitive teeth. Overall, best buy of the year and highly recommended! Oh, and try the watermelon one..

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Susanne, PA
Sep 30 '10
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I've used several stregnths. I like the 20% the best. I sleep in it and everything is fine. It used to cause some pain but I started using toothpaste for sensitive teeth and that worked great. If I use the 35%, I notice lines or streaks on my teeth. The 20% doesn't do that.

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Brody, NY
Sep 11 '10
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I have been using the 20% formula for 8 days now and have seen an amazing difference in the color of my teeth. Im in my mid 40's and despite very good dental hygiene & not being a smoker my teeth have become discolored, almost a slite grey shade. After 8 days I am thrilled with my results, my teeth are now white and brite. The last few nights I did sleep with the trays in as reccomended by me dentist. I think for the price, $250. with the personalized trays made & the product, it was a good value.

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ImmaB, Colorado, USA
Aug 31 '10
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Great stuff, noticeable results almost immediately. A couple of notes for those who have had trouble:

- if your gums are turning white, burning or you can taste the solution, you are using too much gel.

- follow your dentist's instructions, which in my case differ from the manufacturer; i.e. using the 15% gel, wear twice a day for up to an hour at a time.

- brush out the trays and dry thoroughly after use: I use a can of compressed air to dry out completely.

- cutting out coffee and avoiding staining fruits will expedite the whitening process.

Good luck!

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Britt, New York
Aug 05 '10
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I used the 35% not knowing that it was the strongest. My dentist had told me to leave them in for 3 hours at a time! I looked online after having them on for 40 min and couldnt take it anymore- and everyone says to leave them on only for a half hour max!! I see a tiny difference after this one use, and i really want to continue but i got terrible shooting pains through one tooth and my gums were stinging! Anyone else have an okay time with the 35% or should I ask for the less intense one??

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Bee, Seattle, WA
Jul 07 '10
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my teeth are noticably whiter however i notice my teeth on the sides are much less white than my front. im wondering if its because gel slips out. when i run my finger along up upper gums i get globs of gel. any sugestions?

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Angela, Kent, OH
Jun 29 '10
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I've used this product for 5 years. Initially, I used 15% strength, Now I use 35%. I love it! Works great, there is sensitivity, but if you use sensodyne, it helps tremendously. Well worth the money and time. I usually purchase it on Ebay.

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Craig, London, UK
Jun 23 '10
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This stuff works great. I have a dazzling white smile which I use for modelling and with this product you can control the level of whiteness you wish to attain. It does cause me some sensitivity but this fades after around 1 day. I only use this product with the dentist made trays once or twice a month to maintain my desired colouring.

I should mention that I use the 35% gel for around 20 mins at a time. When I used the 15% gel overnight I found the sensitivity almost unbearable, it even woke me in the night and I couldn't get back to sleep. My advice would be to use the stronger stuff (35%) for a shorter period of time and do it in the morning so you have all day for the sensitivity to settle, thus not affecting your sleep.

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Katie, Fairfax, VA
Jun 23 '10
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I tried the Crest Whitestrips, but had to stop because they caused so much "zinging" pain & tooth sensitivity. I have used the Opalescence (15%) 5 times now (every other night). I am pleased with the results .... I don't have "hollywood" like white teeth, but my teeth are definitely whiter & brighter. I do notice a wee bit of sensitivity, but it is very tolerable and short lived. My brother recommended this product. He uses the stronger formula and his teeth are really, really white. I read that the 15% formula will work just as well, but just takes longer to achieve the same results as the more concentrated formula.

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Lynda, Ohio
May 17 '10
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I have used this product for about 12 hours over a 7 day period and I haven't noticed any difference in color of teeth.

I have had problems with moderate to severe gum pain when the bleaching trays are in. Also, have had some blisters on my gums after use. I cannot get a toothbrush anywher near my gums after using. It is extremely painful.

I stopped using it for a couple of days to let my gums heal and I may try it again today to see if it's any better. I have a checkup scheduled with my dentist today and I will see what he recommends.

Not Recommended by Lynda

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Amanda, Kenton, Ohio
May 11 '10
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I only have the 10% and I slept in it as directed. My teeth hurt so bad I woke up from the pain and couldn't go back to sleep. I don't even consider my teeth sensitive!? I was NEVER going to do it again...but I did again last night (about a week after the first time). Same exact thing, my teeth hurt so bad my mouth is watering like I may get sick from the pain. I didn't see a lot of reviews that said they had this problem. My teeth are throbbing so bad. I'm curious if there is any products that I could try for my wedding they will not cause pain?

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Luca, Italy
Apr 11 '10
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I've been looking for a safe product like this for such a long time. I use it with a tray made by my dentist and it definitly works! I chose the 10% formula because it's the gentlest one and I didn't want to risk any side effect. I know I could wear it at night but I prefer during the day, for about three hours. My teeth are whiter and I didn't experience any side affect as I did with the whitenig strips sold in pharmacy. I see many ads on the internet for products sold individually, but my advice is ALWAYS go to the dentist. I will cost much but it will give a better result without any problem for you healt... and if possible ask your dentist to give you Opalescence (at the lowest concentration) which for me was great... I'm really enthustiastic about this product!

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N, San Diego
Mar 09 '10
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I've been using it for 14 days and I've noticed hardly any difference at all. I guess my teeth are a brighter yellow, but definitely not white or even close to white. I've been using it every day and have gone thru 4 syringes of the PF 15%, applying the solution over a time range of 1 - 4 hours per night. Too much time, too much effort, and not a lot of results. I've also experienced sensitivity, red gums, and shooting pains in certain teeth at times. I have 2 cups of coffee in the morning and after that water every day. I do not smoke. I don't drink red wine or anything else that could stain them that bad. I would expect better results than this. I'm going to take it back to my dentist and get a partial refund which they have OK'ed already, as I'm their first complaint!

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Jack, Tampa
Mar 07 '10
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I used it about two years ago after wasting so much money on over the counter whiteners. This was the only product that lightened my teeth, however, where the 'old' silver fillings are, those teeth did not get as white. Okay, because who wants to look fake! I have some left from two years ago and could use a restore, but don't know if it's safe. The tubes I received were from my dentist and there is no expiration date. I see from one post that someone uses it after two years. Anyone know if having three syringes is okay to use after two years?

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Rick G., Jamestown, NY
Mar 06 '10
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I did this treatment through my dentist with the 35% gel, using a tray shaped for my teeth. After about 5 treatments, I got the results that I wanted. It does cause sensitivity problems in both the teeth and gum with occasional sharp pain, but usually for only a couple of days.

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Jim Williams, Newcastle Australia
Jan 31 '10
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If you suffer from Bruxism (teeth grinding while you sleep) like I do, then don't bother with the overnight treatment. All you end up with is a mouth full of gel in the morning. I've had much better success going 2 hours with 15% gel.

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Anonymous, SL
Jan 21 '10
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im using the 20% and i wear it overnight. i ddnt have much sensitivity though. i lost the plastic cap of the syringe. dos it have to be closed or does this affect the gel? anyone pls..

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