Why rinse for 30 seconds?
For maximum efficacy, the dosing of LISTERINE® Antiseptic rinses is 20mL for 30 seconds, twice a day. What happens in those 30 seconds, and why is only 30 seconds of rinsing necessary?
In just 30 seconds of a full strength rinse, the technology behind LISTERINE® Antiseptic damages the cell surface of bacteria, interferes with growth, and increases the amount of time it takes for the bacteria to regrow11, 12, 15-18 as well as yields greater bacterial kill, and greater plaque reduction.19
SCANNING ELECTRON MICROSCOPE (SEM) OF PLAQUE BIOFILM TREATED WITH LISTERINE® ANTISEPTIC
CLOSE UP OF SEM OF RUPTURED BACTERIAL CELL WALL IN PLAQUE BIOFILM TREATED WITH LISTERINE® ANTISEPTIC
*STUDY DESIGN: In this lab model, saliva-derived biofilms were grown on saliva-coated glass slides Biofilms were cultured for 65 hours prior to mouthrinse exposure. Biofilms were stained to enable quantification of the live/dead cells.