Bite’s whitening gel cuts out the need for the tray, as you can brush the gel directly on to your teeth. Compared to the Opalescence Go Kit, this one is a little messier and labor-intensive to use.

These prefilled Opalescence teeth whitening trays are easy to take on the go. They contain 15% hydrogen peroxide with a minty flavor, and each pack comes with 10 treatments.

Dr. Joyce trusts Opalescence teeth whitening in her practice and Opalescence Go prefilled trays are an at-home option she finds successful for many of her patients. The trays are designed for ...