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

I have used this product for about 2 years! It whitens your teeth without making them sensitive!!! Easy to use & it works. Worth the Money for whiter teeth!

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).

I enjoy drinking coffee, so I was very interested in teeth whitening. I was recommended this product by my dentist because it is effective. I had never used a whitening product before, so I didn't have high expectations.One box contains 10 trays, and I used it consistently for 30 minutes every day. I was able to notice the change in the color of my teeth with just 10 trays.Pros1. Excellent performance. It is amazing that you can have white teeth in just 10 days with 10 trays.2. Very convenient to use. Each tray for the upper and lower teeth is individually packaged, so you can use one at a time.3. The wax inside the tray has a mint flavor, so you can use it without feeling uncomfortable.Cons1. It is more expensive than strip products. However, it is acceptable because it is more effective. If you subscribe, you can purchase it at a discount of about 10% compared to the regular price.If I have someone who is concerned about tooth discoloration, I will strongly recommend this product.

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.

After 20 treatments. I can’t tell if they are worse? The sensitivity isn’t bad which is great bc the crest whitening strips I couldn’t see a difference either and I could only do it once a week after doing it daily for 2 weeks. I think in certain lighting my teeth look brighter but kinda just more reflective and still yellow. Will keep trying 😭

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 got these hoping they would be better than the strips I was using. I was wrong! These are terrible and I will not be rebuying. Firstly, there’s more to these than just the strips. With the strips, you peel them off, stick them on your teeth, and wait the amount of time. Easy. With these trays, you have the main plastic tray, then the weird waxy tray that holds the whitener. You have to push the main tray on and kind of suck the waxy tray onto your teeth. It always takes me several rounds to really get the waxy tray to stick and it feels like a sports teeth protecter when they are in. On top of that, the whitener inside the waxy tray is clumpy and I almost wondered if it was old/expired but the box didn’t have a date that I could find. It should be like a toothpaste and kind of squish around your teeth, but every time I take these off, there are clumps on my teeth and the stuff doesn’t seem to be spreading appropriately, which reduces the whitening effect of the product. I noticed spots on my teeth where the clump balls would be and would whiten in spots. Also, these are designed for perfectly straight teeth. Now, I don’t have crazy crooked teeth, but I do have one, on the bottom row that is not perfectly aligned. I’ve never had any issues using strips, but these trays don’t work well at all. The top row fits okay and seems to stay once you manage to get it on there. But the bottom row never fully covers that one tooth that isn’t perfectly aligned, and it slides around on my bottom row very badly and doesn’t whiten evenly.Overall, the Crest brand whitening strips whiten better, stick better, and are cheaper than these with less hassle and less overall waste.