Crest Scope Outlast mouthwash uses ground-breaking Outlast Technology that binds tightly to select receptors in the mouth, creating a cool, refreshing sensation that lasts longer. With Scope Outlast, experience fresh feeling breath up to 5X longer* while the formula kills millions of bad breath bacteria found in your mouth. Get ready for an energizing, cool blast of Scope for a refreshed, clean feeling. *vs. brushing alone