High fructose corn syrup, corn syrup, sugar, water, cocoa (adds a negligible amount of fat), contains 2% or less of: potassium sorbate (a preservative), salt, mono- and diglycerides (adds a negligible amount of fat), polysorbate 60 (an emulsifier), xanthan gum, and vanillin (an artificial flavoring).
Manufacturer likely did not include an allergen statement; however, please double-check the product packaging and/or contact the manufacturer if you have a severe food allergy.