Crest® Scope® Mouthwash Outlast™. Crest Clean Meets Scope Freshness. Up To 5 X Longer Fresh Feeling Breath*. 1 L (33.8 FL OZ). Patents: www.pg.com/patents. Questions US: 1-800-862-7442. CA: 1-800-668-0152. www,pg.com. www.crest.com. © 2015 P&G.