By an old technique promises a thick hairs.

As in dandruff, use one tea.sp. of soda and glycerine, ads glass of boiling water,cool ,spread on hairs,rub in head and roots after, keeping for 10 minutes,wash .
And next is later four days, a dandruff will down, rinse hairs with one tbl.sp. of apple vinegar in half l. of water mixing.