- Allergy to any of the following: nicotine resin, xylitol, butylhydroxythyolen E 321, sodium carbonate, corn starch, magnesium oxide, D&C Yellow No 10, menthol, acesulfam potassium, wax, titan oxide, maltitol, sorbitol, gum base, sucralose, palm oil, mannitol, glycerin, calcium carbonate, gum arabic.