Reese's Peanut Butter Cups. KitKat. Hershey's Cookies 'n' Creme. Heath Milk Chocolate English Toffee Bar. Milk Duds. Whoppers. Ingredient(s) derived from a bioengineered source. www.askhershey.com. www.celebratewithhersheys.com. Questions or comments? www.askhershey.com or 800-468-1714. Visit us at www.celebratewithhersheys.com.