MucoStop is a blend of proteolytic enzymes to help reduce the effects of histamine-induced inflammation. The purpose of MucoStop is to support normal mucus function while helping to speed the breakdown and removal of inappropriate mucus. Mucolase, one of the enzymes in MucoStop, is a proteolytic enzyme (breaks down protein) that has mucolytic properties, meaning it targets and hydrolyzes inappropriate or excess mucus.