Active (in each rounded tablespoon) methylcellulose (a non-allergenic fiber) 2g, bulk-forming fiber laxative; inactive aspartame, dibasic calcium phosphate, fd&c yellow #6 lake, malic acid, maltodextrin, orange flavors (natural and artificial), potassium citrate, riboflavin.
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.