Rezaband Diagram

Reza Band®: How it Works

The upper esophageal sphincter, or UES, is a muscle at the top of your esophagus that opens when you swallow and otherwise remains closed to prevent stomach contents from regurgitating back up into your throat and lungs.

A weak or compromised UES has trouble staying closed, so stomach contents including acids, pepsins and other enzymes may rise above the UES and enter the throat and lungs.

The Reza Band applies slight external pressure to the UES to help it function properly.