First discovered in the 1890s, xylitol has been adopted by many around the world as an excellent sugar substitute. Studies showing its likelihood to reduce tooth decay have also made it popular in gum and mints. Xylishield, the complete line of xylitol oral health care products — including xylitol gum, xylitol mints, xylitol mouthwash, and xylitol toothpaste — can help you get your optimum daily levels of xylitol.