there are vitamins that are made just for hair and nails. i think every company out there makes them. organic, natural and regular vitamins for your hair. a lot of them have biotin in them. then of course there is minoxodil to apply to scalp but when you stop you hair goes back to its regular condition. i wouldn't suggest this anyway unless you were having bald spots. eat healthy.drink fluids and massage your scalp when you shampoo. gently massage. most hair, thin, thick, fine, blond, brunette, redhead, black all runs in your genes so there isn't much chance having thick hair if no one else does. sorry