NiteWhite 16% Carbamide Peroxide

This works very well. Been using it for years. I do it for two or 3 nights and let it alone for a couple of months.

Purchased many times - never disappoints

This really works and is safer to use than more aggressive whiteners. I highly recommend!

Exactly what I used to get from the dentist at three times the price!

I've been using carbamide peroxide for years with my retainer - using it 1 or 2 x year overnight. My teeth are very white and I have had no dental issues.

There is no tray to put the gel into. The directions say to put in the tray and then into your mouth.