OpalescenceGo 10% - Prefilled Teeth Whitening Trays Kit (10 Treatments) - 10% Hydrogen Peroxide - Mint Made by Ultradent Products. Go Teeth Whitening Kit -Mint- GO10-5193-1

I did not have any sensitivity. I did see results rather quickly. You have to push up from the bottom of the tray to get them to release. I think I had one tray I had to manually take out of the tray out of twelve. Better than strip whiteners.

Great quality whitening gel with trays, recommended by dentist. Really White's, second time purchased.

This work fast- so easy to apply and saw immediate results on 15 minutes. Looking forward to see what happens over the next few uses. Previously used the custom trays from the dentist with opalescence (paid thousands for the custom trays). and these trays seem more hygienic being disposable.

Works quickly and does lighten your teeth

I think the prefilled tray works best on teeth that are straight. Whitens the hell out of them if you leave it on a little longer than recommended. Don’t go nuts with it though because it will bleach your gums.

These are a great purchase. They whiten teeth fast

These work well. But I did notice that the box I bought from the dentist office for the same price has 15% hydrogen peroxide and these are only 10% hydrogen peroxide. They are also kept In the refrigerator when purchasing them through your dentist office and will last six months past the expiration date if kept refrigerated.

Expensive. They work pretty good but are extremely difficult to apply and keep on. Easy to waste if not applied perfectly.