Instead of watery gel that slides off within minutes, these use a dry-gel formula that activates when it contacts your saliva.

The prefilled tray wraps around your entire arch—top and bottom—and creates an adhesive seal that holds the gel against your enamel for the full 30 minutes.

No sliding. No gel oozing onto gums. No patchy results where some teeth whiten and others don't.

Same active ingredient dentists use (carbamide peroxide), but delivered in a system that actually maintains contact with your front four teeth—the ones people see.