PROBLEM TO BE SOLVED: To provide a material increased in an antiallergic effect by improving solubility to water by coexisting hardly water-soluble and naturally derived hesperidin and a natural component with no intake restriction.SOLUTION: An antiallegic agent contains (A) one or more hesperidin containing citrus fruits and (B) a combination of one or more of narirutin containing citrus fruits which is different from the hesperdin containing citrus fruits.