Reveal your brighter smile with Crest 3D White Brilliance Stain Prevention Whitening Mouthwash. Crest exclusive Whitening Lock Technology acts as a whitening protector that helps prevent new stains from forming for a full 12 hours. With 3D White Brilliance Stain Prevention Whitening Mouthwash, you'll see a whiter smile in just 5 days. The revolutionary multi-benefit formula whitens teeth, is enamel-safe for daily use, and leaves your mouth feeling refreshed all without the harshness of alcohol.