Opalescence Opal Go - Prefilled Teeth Whitening Trays - Gentle - (7 Treatments) - Hydrogen Peroxide - Cool Mint - Made by Ultradent. Op-Tr-Gent-5526-1

I absolutely love these whitening strips! I initially got them directly from my dentist's office on their recommendation, and they have truly been the best I've ever tried. My teeth have never looked brighter. However, I do want to give a heads up if you have sensitive teeth, these will likely cause some discomfort or pain. It's a powerful formula, so be prepared for that sensation. Despite the sensitivity, the results are worth it for me!

I’m halfway through the 7-day treatment and already really happy with the results. The trays are super easy to use and only take 30 minutes a day. I like the light minty taste, and best of all, I haven’t experienced any tooth sensitivity. Looking forward to seeing the final result — so far, so good!

Haven't used yet, but exactly what I was looking for

This is my second order. I happy with my purchase. Even the dentist said my teeth looked more healthy.

Didnt work as much as I hoped. Didn't really notice that much of a difference.

I was so excited to try these as I had read tons of good reviews but they didn’t work as I expected. I used according to the package instructions but didn’t notice any whitening results. I had lots of sensitivity with these as well. On the positive side these trays were very easy to use and it seemed like the product stayed on very good compared to others.

Did not like the mouth trays they were very thin and would not stay in place, I could not use them.

Great product - works as stated, excellent results when instructions are followed.