scope (mouthwash) scope (mouthwash) scope is a brand of mouthwash made by procter & gamble. it was introduced in 1966, and for many years has been a competitor of listerine, the longtime dominant mouthwash product. the scope has collaborated with other brands such as crest and oral-b. scope mouthwash logo (1997–2009) scope mouthwash logo (2009–present) scope outlast logo (2009–2012) crest pluthe scopepe outlast logo (2009–2012) ingredients the active ingredients of scope outlast are cetylpyridinium chloride, domiphen bromide, and denatured alcohol. inactive ingredients of scope outlast are water, glycerin, polysorbate 80, sodium saccharin, sodium benzoate, benzoic acid, blue 1, and yellow 5.