Standing in the mouthwash aisle, staring at 30 different bottles making bold claims — "Kills 99.9% of germs!" "Clinically proven!" "Doctor recommended!" — can feel overwhelming. Which one actually works? Which ingredients matter? And which ones are just marketing hype? After 25 years of practice, I've reviewed thousands of mouthwash labels. Most patients have no idea what they're looking at. They choose based on color, flavor, or whatever's on sale. Here's how to actually rea