The Extra Peppermint Sugarfree Mints (often consistent with Extra Peppermint Sugar-Free Chewing Gum) are crafted from a base of sorbitol, gum base, glycerol, natural and artificial flavors, and hydrogenated starch hydrolysate, with less than 2% of the composition made up of aspartame, mannitol, acesulfame K, soy lecithin, BHT (as a freshness preservative), and Blue 1 Lake color . In terms of allergen and safety information, the product contains phenylalanine (a crucial warning for those with phenylketonuria) . Additionally, some sources note that it contains soy and its derivatives