J.T.
do a quick search on causes of dandruff. usually when your body does something "off" it means its off and trying to let you know. find out the cause then fix it if you can. perhaps his body isnt handeling a lot of sugar well, or breads, or needing more healthy oils included with his diet. usually its a diet thing. sometimes its stress. if the head and shoulders isnt working try medicated selson blue or t gel for the big guns!