Active ingredients: caffeine (200 mg). Inactive ingredients: corn starch, dextrose, dicalcium phosphate, d&c yellow 10 aluminum lake, fd&c yellow 6 aluminum lake, magnesium stearate, microcrystalline cellulose, silica gel.
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.