Opalescence Go 15- Prefilled Teeth Whitening Trays - 15% Hydrogen Peroxide - (10 Treatments) Made by Ultradent Products. Teeth Whitening Kit -Mint - 5194-1

I picked up my first box of Opalescence Go 15% from my dentist, who swore up and down these trays work just as well — if not better — than the in-office treatments. Naturally, I was intrigued. No appointment, no weird blue light, just pop in a tray and go? Count me in.So here’s how it went. You get ten prefilled trays, which is great. What the instructions don’t tell you is that the “just pop it in and the inner tray detaches on its own” thing? Yeah... that didn’t work for me. Not even once. I had to manually remove the insert (which actually holds the gel) from the outer tray and place that in my mouth. It’s not rocket science, but definitely not as plug-and-play as the directions make it sound.Once I figured out the manual detachment trick, they were easy to use. Wear them for 15 to 20 minutes, spit, rinse, and repeat the next day. I’ve gone through six of the ten so far. My teeth are definitely whiter, just not Hollywood blinding yet. That said, my wife used them twice and saw a dramatic difference—like, “You got your teeth done?” kind of difference.So I’m convinced: results vary, and your genes probably have more to do with whitening speed than the product itself. Also worth mentioning is that you can get custom trays made and buy the gel separately, which cuts the price in the long run. But you do have to lay out the upfront cost for custom molds.Bottom line: If you want a solid, dentist-recommended over-the-counter option, this is it. Just be ready to skip the outer tray, trust the goo, and manage your expectations unless you won the tooth lottery like my wife.

I didn't see much of a change after using one tray for 20 minutes, but after using the second tray I could see a color difference. By the time I got through five trays my teeth were noticeably whiter. I will definitely continue to repurchase this as it's very easy to use, easier to use than strips and a pen. You put the tray over your teeth and it has a strip that adheres to your teeth and then it foams for about 20 minutes and gets all over your teeth. Works pretty decently, kind of sweet, and very easy to brush off.

This is my second time purchasing, and these were recommended to me by my dentist. I think the whitening power is solid (better than Crest). I got compliments after the first time I used them. My teeth are not very sensitive, and I didn’t have any issues.Only downside is these need to be kept cold, and I didn’t see anything in the packaging keeping them cold in-transit. I think that may effect the effectiveness. They worked less well than the ones I bought from my dentist (straight out of the fridge into the fridge).

At first I was reluctant to start using this, thinking it would be uncomfortable or taste bad. But really it was not any of those things. Comfortable and easy to use. I was very happy with the results and I would definitely use again.

Finished one full box and bought the second one, definitely satisfied with the results. Whitening gets slower after each use, so expect to use more than 1 box if you want really white teeths. I have to leave them at 45-60min for each use.

I am not sure these are working our not. I wanted to whiten my lower teeth as I am getting a bridge that I requested a shade lighter than my current color. I am able to use the uppers and lowers for my teeth so the box lasted me twice as long as a normal person. I don't know if it is because I am having a hard time applying them or just a bad batch. I bought another box to see if the shade gets better.They are very hard to apply. I dont know how many times that I have tried to remove the green tray just for the whitener to still be in it. I really have to press down hard everywhere and suck multiple times as well as wiggle it side to side to get the green tray to come off without the whitener. Very frustrating.My gums, also, are getting irritated from the clear tray that holds the whitener. It appears to be pushing down on my gums during the 15 minute or so time for application.As far as refrigeration, my dentist said that is only for if you are not going to use them for a while. If you are going to use them within a month or so, refrigeration is not necessary. I know there is a question as to 'well how long did they sit in my doctors office or at an Amazon facility' which I cannot answer.

These are excellent ...this is the legit product from the company for less than what I can purchase for at my own dental office...I am a certified dental assistant ..therse are more convenient than custom trays that cost $300+ not including bleach and this is the same bleach already loaded...these are fantastic ..highly recommend ..will be ordering again as soon as I get out of ortho