Thin, flexible strips that contain an active ingredient used by dental professionals. Unlike toothpaste, Crest® Sensi-Stop™ Strips are applied directly to sensitive areas, providing targeted delivery of the key ingredient that allows for longer contact time on the surface of the tooth. Within minutes, strips build a lasting barrier that helps stop sensitivity pain by blocking tubules, relieving symptoms of dental sensitivity for up to 30 days. Box of 6 Strips