PocketPaks

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Listerine PocketPaks (also known as Listerine Actives in the UK) are small rectangular (approximately on the same order of magnitude of size as a U.S. quarter) packages containing thin rectangular strips that provide the same clean feeling as rinsing with Listerine mouthwash. The strips, once placed in the mouth, dissolve when mixed with saliva, releasing the mouthwash. They were first released in 2001 and quickly became very popular; they are currently available in four flavors: cool mint, fresh burst, cinnamon, and citrus. In the late summer of 2005, Listerine (which is distributed by Pfizer, Inc.) introduced PocketMist, which is essentially a PocketPak in spray form.

The strips are made of a polysaccharide polymer called pullulan, which is used to create the thin, paperlike sheets that dissolve when eaten and release the aromatic oils menthol, thymol, methyl salicylate, and eucalyptol.

The strips also contain the phenylketonuric, phenylalanine, thus people with PKU (phenylketonuria) should avoid the consumption of this product.