Opalescence Go 15- Prefilled Teeth Whitening Trays - 15% Hydrogen Peroxide - (10 Treatments) Made by Ultradent Products. Teeth Whitening Kit -Mint - Includes 2Chill Toothbrush 5194-1T

I love this product. The installation method is genius and makes it very easy to get these on the teeth properly. I have sensitive gums and this product does not cause me irritation. I will definitely order more in the future.

The Opalescence Go 15% Mint prefilled teeth whitening trays are incredibly convenient and easy to use, and they delivered great results for me. Super Convenient: The prefilled trays are a huge plus—no syringes, no mess, and no guessing how much gel to use. I just open a pack, pop them in, and go. They fit comfortably and stay in place, which makes whitening at home simple and stress-free. Comfort & Taste: The mint flavor is mild and pleasant, and the trays are comfortable to wear during the treatment time. I didn’t experience much sensitivity, which is always a concern with whitening products. Noticeable Results: After a few uses, I could already see my teeth looking brighter and cleaner. It’s a great option for quick touch-ups or maintaining a white smile between dental visits. The Only Downside – Price: The only reason I’m giving 4 stars instead of 5 is the cost. They work well, but they are more expensive than many over-the-counter whitening options. That said, you are definitely paying for convenience and quality. Overall Impression: If you’re looking for an easy, no-fuss way to whiten your teeth at home, these trays are fantastic. While a bit pricey, the convenience and results make them worth it for many people.

In the past I was sensitive to any whitening and gave up. Dentist office suggested this one and it was a breeze with zero sensitivity. Ordered it again

I ordered this 15% Go Kit because my dentist recommended it. It comes with 10 sets of trays, individually wrapped and pre-filled with 15% gel for each day. I used the trays for 10 days according to the included directions and I saw NO CHANGE in the color of my teeth. I decided to order the 35% gel syringes and use it with the kit disposable trays to see if that worked better. Yes it did work better! However, I also noticed a discrepancy in directions that came with the 35% gel syringes - those directions say to use the 15% gel for 4 - 6 hours, whereas the directions that came with the Go Kit say to use for 15 - 20 minutes! No wonder I saw ZERO results! I used the ten sets of 15% trays for 30 minutes each night because that's what the included directions said, and I even exceeded the stated time by a bit. See photo which clearly illustrates the discrepancy between the directions that came with the two different Opalescence packages. I feel like I completely flushed good money down the toilet by buying this Go Kit and I am very unhappy.

Did not see any improvement. Trays are thick and probably did not have a tight contact with the teeth. Did not feel any sensitivity from pretty high (15%) content of H2O2.