Hello, Gene 290 Capsule is a health food made of American ginseng, Astragalus, Lycium barbarum, Cornus officinalis, Gastrodia elata, Colla Corii Asini and corn starch. It has been proved that it has the health care functions of enhancing immunity, improving physique and reducing diseases, and has few adverse reactions. I suggest you buy a bottle for your uncle to try