Sen-Sen was a type of breath freshener originally marketed as a "breath perfume" in the late 19th century by the T. B. Dunn Company and then produced by F&F Foods until the product's discontinuation in July 2013. Sen-Sen bore a strong resemblance to Vigroids, a liquorice sweet made by Ernest Jackson & Company, Ltd.
Sen-Sens were available in small packets or cardboard boxes. Similar to a matchbox of the time, an inner box slid out from a cardboard sleeve revealing a small hole from which the tiny Sen-Sen squares would fall when the box was shaken.
Sen-Sen's ingredients were licorice, gum arabic, maltodextrin, sugar, and natural and artificial flavors.
Sen-Sen's distinctive, strong scent, its nostalgic association with earlier time periods (particularly the 1930s through the 1950s), and its frequent use in covering up the odoriferous evidence of perceived vices such as drinking and cigarette smoking has led to many references in multiple forms of media.
- IRS Agent Reginald Lawrence eats Sen-Sens in Walter Mosley's second Easy Rawlins novel, A Red Death (1991).
- Robert Asprin has a character called "The Sen-Sen Ante Kid" in his novel Little Myth Marker. The character plays Dragon Poker and always starts the game by adding a Sen-Sen to the ante.
- Robert Penn Warren references a character named Sen-Sen Puckett "who chewed Sen-Sen to keep his breath sweet". Character Marvin Frey is described as having "...breath sweetly flavored with Sen-Sen and red-eye" in his novel All the King's Men.
- They are referenced in the song "Ya Got Trouble" from the 1957 musical comedy The Music Man as a way to cover up the smell of cigarettes.
- They are referenced in the song "Keeping the Faith" from Billy Joel's 1983 album An Innocent Man.
- Yogi Yorgesson (a stage name for comic Harry Stewart) recorded a parody of "My Little Grass Shack in Kealakekua, Hawaii" entitled "My Little Old Shack in Minneapolis, Minnesota". One line says, "Got a pocketful of Sen-Sen for my sweetheart Hedy Jensen".
- Zippy the Pinhead mentions Sen-Sen from time to time.
- Mosley, Walter, A Red Death, in The Walter Mosley Omnibus (London: Picador, 1996): 220.
- , Robert Penn. All The King's Men. Foreword by Joseph Blotner. 1946. San Diego: Harvest, 1996. 73.
- (Ya Got) Trouble" lyrics
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